Home / 15,167.62-20,951.76-13,752.91

Finding the Fourth Proportional to 15,167.62, 20,951.76 and 13,752.91

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Solution

The fourth proportional to 15,167.62, 20,951.76 and 13,752.91 is: 18,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.62 : 20,951.76 = 13,752.91 : x
  2. Step 2: Convert to fraction form
    15,167.62/20,951.76 = 13,752.91/x
  3. Step 3: Cross multiply
    15,167.62x = 20,951.76 × 13,752.91
  4. Step 4: Simplify right side
    15,167.62x = 288,147,669.62
  5. Step 5: Solve for x
    x = 288,147,669.62/15,167.62
  6. Step 6: Final answer
    x = 18,997.55

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1.5x scale

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.