Practice Proportions in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
An equation stating that two ratios are equal, used to find an unknown when three of the four values are known.
If 2 candies cost 1, then 4 candies cost 2—same proportion.
Example 1
easySolve the proportion \frac{x}{6} = \frac{10}{15}.
Example 2
mediumIf 5 notebooks cost \8.75$, how much do 12 notebooks cost?
Example 3
easySolve: \frac{3}{7} = \frac{9}{x}.
Example 4
hardA car travels 180 km on 15 litres of fuel. How many litres are needed for a 540 km trip?
Example 5
mediumSolve the proportion: \frac{x}{12} = \frac{5}{8}.