Finding the Fourth Proportional to 7,766.60, 11,640.17 and 6,116.63
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Solution
The fourth proportional to 7,766.60, 11,640.17 and 6,116.63 is: 9,167.28
Step by Step Solution
- Step 1: Write the proportion equation
7,766.60 : 11,640.17 = 6,116.63 : x - Step 2: Convert to fraction form
7,766.60/11,640.17 = 6,116.63/x - Step 3: Cross multiply
7,766.60x = 11,640.17 × 6,116.63 - Step 4: Simplify right side
7,766.60x = 71,198,524.24 - Step 5: Solve for x
x = 71,198,524.24/7,766.60 - Step 6: Final answer
x = 9,167.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.