Finding the Fourth Proportional to 12,861.36, 17,748 and 7,272
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Solution
The fourth proportional to 12,861.36, 17,748 and 7,272 is: 10,034.98
Step by Step Solution
- Step 1: Write the proportion equation
12,861.36 : 17,748 = 7,272 : x - Step 2: Convert to fraction form
12,861.36/17,748 = 7,272/x - Step 3: Cross multiply
12,861.36x = 17,748 × 7,272 - Step 4: Simplify right side
12,861.36x = 129,063,456 - Step 5: Solve for x
x = 129,063,456/12,861.36 - Step 6: Final answer
x = 10,034.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.