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Finding the Fourth Proportional to 12,496.38, 18,747.65 and 8,805.82

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Solution

The fourth proportional to 12,496.38, 18,747.65 and 8,805.82 is: 13,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.38 : 18,747.65 = 8,805.82 : x
  2. Step 2: Convert to fraction form
    12,496.38/18,747.65 = 8,805.82/x
  3. Step 3: Cross multiply
    12,496.38x = 18,747.65 × 8,805.82
  4. Step 4: Simplify right side
    12,496.38x = 165,088,431.32
  5. Step 5: Solve for x
    x = 165,088,431.32/12,496.38
  6. Step 6: Final answer
    x = 13,210.90

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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.