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Finding the Fourth Proportional to 10,593.60, 15,868.80 and 5,402.40

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Solution

The fourth proportional to 10,593.60, 15,868.80 and 5,402.40 is: 8,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,593.60 : 15,868.80 = 5,402.40 : x
  2. Step 2: Convert to fraction form
    10,593.60/15,868.80 = 5,402.40/x
  3. Step 3: Cross multiply
    10,593.60x = 15,868.80 × 5,402.40
  4. Step 4: Simplify right side
    10,593.60x = 85,729,605.12
  5. Step 5: Solve for x
    x = 85,729,605.12/10,593.60
  6. Step 6: Final answer
    x = 8,092.58

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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.