Home / 14,610.13-20,154.38-8,631.43

Finding the Fourth Proportional to 14,610.13, 20,154.38 and 8,631.43

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Solution

The fourth proportional to 14,610.13, 20,154.38 and 8,631.43 is: 11,906.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,610.13 : 20,154.38 = 8,631.43 : x
  2. Step 2: Convert to fraction form
    14,610.13/20,154.38 = 8,631.43/x
  3. Step 3: Cross multiply
    14,610.13x = 20,154.38 × 8,631.43
  4. Step 4: Simplify right side
    14,610.13x = 173,961,026.62
  5. Step 5: Solve for x
    x = 173,961,026.62/14,610.13
  6. Step 6: Final answer
    x = 11,906.88

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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.