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Finding the Fourth Proportional to 14,387.48, 19,854.53 and 8,013.90

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Solution

The fourth proportional to 14,387.48, 19,854.53 and 8,013.90 is: 11,059.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.48 : 19,854.53 = 8,013.90 : x
  2. Step 2: Convert to fraction form
    14,387.48/19,854.53 = 8,013.90/x
  3. Step 3: Cross multiply
    14,387.48x = 19,854.53 × 8,013.90
  4. Step 4: Simplify right side
    14,387.48x = 159,112,217.97
  5. Step 5: Solve for x
    x = 159,112,217.97/14,387.48
  6. Step 6: Final answer
    x = 11,059.07

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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.