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Finding the Fourth Proportional to 18,249.64, 27,385.02 and 9,930.52

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Solution

The fourth proportional to 18,249.64, 27,385.02 and 9,930.52 is: 14,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.64 : 27,385.02 = 9,930.52 : x
  2. Step 2: Convert to fraction form
    18,249.64/27,385.02 = 9,930.52/x
  3. Step 3: Cross multiply
    18,249.64x = 27,385.02 × 9,930.52
  4. Step 4: Simplify right side
    18,249.64x = 271,947,488.81
  5. Step 5: Solve for x
    x = 271,947,488.81/18,249.64
  6. Step 6: Final answer
    x = 14,901.53

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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.