Home / 14,869.97-20,521.14-8,155.88

Finding the Fourth Proportional to 14,869.97, 20,521.14 and 8,155.88

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Solution

The fourth proportional to 14,869.97, 20,521.14 and 8,155.88 is: 11,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.97 : 20,521.14 = 8,155.88 : x
  2. Step 2: Convert to fraction form
    14,869.97/20,521.14 = 8,155.88/x
  3. Step 3: Cross multiply
    14,869.97x = 20,521.14 × 8,155.88
  4. Step 4: Simplify right side
    14,869.97x = 167,367,963.20
  5. Step 5: Solve for x
    x = 167,367,963.20/14,869.97
  6. Step 6: Final answer
    x = 11,255.43

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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.