Home / 15,701.38-21,673.61-10,397.90

Finding the Fourth Proportional to 15,701.38, 21,673.61 and 10,397.90

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Solution

The fourth proportional to 15,701.38, 21,673.61 and 10,397.90 is: 14,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.38 : 21,673.61 = 10,397.90 : x
  2. Step 2: Convert to fraction form
    15,701.38/21,673.61 = 10,397.90/x
  3. Step 3: Cross multiply
    15,701.38x = 21,673.61 × 10,397.90
  4. Step 4: Simplify right side
    15,701.38x = 225,360,070.61
  5. Step 5: Solve for x
    x = 225,360,070.61/15,701.38
  6. Step 6: Final answer
    x = 14,352.89

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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.