Question

Do the following ratios have a proportional relationship? Determine proportionality by using cross multiplication

Answer 1

So, we will use cross multiplication​ to show if the ratios have a proportional relationship

$\begin{gathered} \frac{8}{12}\text{and }\frac{5}{7} \\ \end{gathered}$

12 * 5 = 60

8 * 7 = 56

so, the the rations doesn't have a proportional relationship

b) 24 : 16 and 9 : 6

Write the ratios as fractions

$\frac{24}{16}and\frac{9}{6}$

So, 24 * 6 = 144

And 16 * 9 = 144

so, the ratios have a proportional relationship