Proportions worksheets with answer keys

Solving proportions by cross-multiplication, with a single unknown to isolate. Grades 6-8. Every sheet prints with a matching answer key, and every sheet is generated fresh — so you can hand out a different one each time without writing it yourself.

Generate a proportions worksheet →

What the problems look like

Three real examples at each difficulty, with answers.

Easy

• Solve for x: 6/3 = 30/x → x = 15
• Solve for x: 5/4 = 10/x → x = 8
• Solve for x: 2/5 = 12/x → x = 30

Generate a full easy proportions worksheet →

Medium

• Solve for x: 10/5 = 70/x → x = 35
• Solve for x: 11/8 = 110/x → x = 80
• Solve for x: 3/6 = 21/x → x = 42

Generate a full medium proportions worksheet →

Hard

• Solve for x: 19/7 = 133/x → x = 49
• Solve for x: 19/8 = 76/x → x = 32
• Solve for x: 13/10 = 78/x → x = 60

Generate a full hard proportions worksheet →

How to use it

• Pick a difficulty above and hit generate — you get 20 problems instantly.
• Toggle the answer key on or off before you print.
• Hit “New problems” for a completely different sheet on the same skill.
• Every sheet has a permanent link, so you can reprint the exact same one next year.
• No signup, no ads on the printout. Pro ($19) raises the cap to 60 problems and prints A–F differentiated versions in one go.

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