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Finding the Fourth Proportional to 12,387.96, 17,044.68 and 10,704

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Solution

The fourth proportional to 12,387.96, 17,044.68 and 10,704 is: 14,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.96 : 17,044.68 = 10,704 : x
  2. Step 2: Convert to fraction form
    12,387.96/17,044.68 = 10,704/x
  3. Step 3: Cross multiply
    12,387.96x = 17,044.68 × 10,704
  4. Step 4: Simplify right side
    12,387.96x = 182,446,254.72
  5. Step 5: Solve for x
    x = 182,446,254.72/12,387.96
  6. Step 6: Final answer
    x = 14,727.71

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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.