Question

do the ratios 19:15 and 22:18 form a proportion?
yes
no

Explanation:

Step1: Write ratios as fractions

The ratio $19:15$ is $\frac{19}{15}$, and the ratio $22:18$ simplifies to $\frac{22\div2}{18\div2}=\frac{11}{9}$.

Step2: Check cross - products

Cross - multiply. For $\frac{19}{15}$ and $\frac{11}{9}$, we get $19\times9 = 171$ and $15\times11=165$. Since $171
eq165$.

Answer:

no