Cross-multiply to see if the ratioforms ap a proportion. Select Yes fit forms a proportion and No lif it does not (10)/(15)=(5)/(8)

To determine if the given ratio forms a proportion, we need to cross-multiply and check if the products are equal.<br /><br />Given:<br />\[<br />\frac{10}{15} = \frac{5}{8}<br />\]<br /><br />Cross-multiplying, we get:<br />\[<br />10 \times 8 = 15 \times 5<br />\]<br /><br />Calculating each side:<br />\[<br />10 \times 8 = 80<br />\]<br />\[<br />15 \times 5 = 75<br />\]<br /><br />Since \(80 \neq 75\), the products are not equal. Therefore, the given ratio does not form a proportion.<br /><br />So, the correct answer is:<br />It does not form a proportion.