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Finding the Fourth Proportional to 10,539.50, 15,801.03 and 5,276.60

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Solution

The fourth proportional to 10,539.50, 15,801.03 and 5,276.60 is: 7,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.50 : 15,801.03 = 5,276.60 : x
  2. Step 2: Convert to fraction form
    10,539.50/15,801.03 = 5,276.60/x
  3. Step 3: Cross multiply
    10,539.50x = 15,801.03 × 5,276.60
  4. Step 4: Simplify right side
    10,539.50x = 83,375,714.90
  5. Step 5: Solve for x
    x = 83,375,714.90/10,539.50
  6. Step 6: Final answer
    x = 7,910.78

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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.