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Finding the Fourth Proportional to 15,167.82, 20,952 and 13,753.08

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Solution

The fourth proportional to 15,167.82, 20,952 and 13,753.08 is: 18,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.82 : 20,952 = 13,753.08 : x
  2. Step 2: Convert to fraction form
    15,167.82/20,952 = 13,753.08/x
  3. Step 3: Cross multiply
    15,167.82x = 20,952 × 13,753.08
  4. Step 4: Simplify right side
    15,167.82x = 288,154,532.16
  5. Step 5: Solve for x
    x = 288,154,532.16/15,167.82
  6. Step 6: Final answer
    x = 18,997.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.