Answer:
see explanation
Step-by-step explanation:
Using cross- products, that is
[tex]\frac{a}{b}[/tex] = [tex]\frac{c}{d}[/tex] then ad = bc
Given the ratios
[tex]\frac{4}{14}[/tex] and [tex]\frac{6}{21}[/tex]
Then equating and using cross- products
If both sides equate then the ratios are equivalent
[tex]\frac{4}{14}[/tex] = [tex]\frac{6}{21}[/tex], then
4 × 21 = 6 × 14 ⇒ 84 = 84
Both sides are equal thus the ratios are equivalent
