5. Ratios and Proportions

Solving Proportions — Quiz

Test your understanding of solving proportions with 5 practice questions.

Practice Questions

Question 1

Which property allows us to solve a proportion like $ \frac{a}{b} = \frac{c}{d} $ by multiplying $a$ by $d$ and $b$ by $c$?

Question 2

If a baker uses $2$ cups of sugar for every $5$ cups of flour in a cake, how many cups of sugar are needed if the baker uses $15$ cups of flour?

Question 3

A model car is built with a scale of $1:24$. If the real car is $12 feet long, how long is the model car in inches?

Question 4

If a painter uses $3$ gallons of paint to cover $900$ square feet, how many square feet can be covered with $5$ gallons of paint?

Question 5

A recipe for lemonade calls for $2$ lemons for every $3$ cups of water. If you want to make a larger batch using $9$ cups of water, how many lemons do you need?