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Finding the Fourth Proportional to 15,217.96, 22,785.88 and 9,939.88

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Solution

The fourth proportional to 15,217.96, 22,785.88 and 9,939.88 is: 14,883.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,217.96 : 22,785.88 = 9,939.88 : x
  2. Step 2: Convert to fraction form
    15,217.96/22,785.88 = 9,939.88/x
  3. Step 3: Cross multiply
    15,217.96x = 22,785.88 × 9,939.88
  4. Step 4: Simplify right side
    15,217.96x = 226,488,912.89
  5. Step 5: Solve for x
    x = 226,488,912.89/15,217.96
  6. Step 6: Final answer
    x = 14,883.00

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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.