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Finding the Fourth Proportional to 17,613.80, 26,414.02 and 5,129.68

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Solution

The fourth proportional to 17,613.80, 26,414.02 and 5,129.68 is: 7,692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,613.80 : 26,414.02 = 5,129.68 : x
  2. Step 2: Convert to fraction form
    17,613.80/26,414.02 = 5,129.68/x
  3. Step 3: Cross multiply
    17,613.80x = 26,414.02 × 5,129.68
  4. Step 4: Simplify right side
    17,613.80x = 135,495,470.11
  5. Step 5: Solve for x
    x = 135,495,470.11/17,613.80
  6. Step 6: Final answer
    x = 7,692.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.