Question

Proportions- Determine if each pair of ratios forms a proportion. Show all work!

Answer 1

Answer:

$\frac{6}{9}$ and $\frac{14}{21}$ form a proportion.

Step-by-step explanation:

To check whether the two ratios (in fraction form) are proportional, we set them equal to each other and find their cross product.

The cross product is found by multiplying the numerator of each fraction with denominator of the other fraction. If their cross products are equal then they the two ratios form a proportion.

$\frac{6}{9} = \frac{14}{21}$

$6*21= 14*9$

$126=126$

Therefore, the given ratios form a proportion.

Answer 2

you do cross-multiply

6 times 21 = 126

14 times 9 = 126

it is a proportional because it is equivalent to each other