Home / 14,551.13-20,079.61-8,581.43

Finding the Fourth Proportional to 14,551.13, 20,079.61 and 8,581.43

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Solution

The fourth proportional to 14,551.13, 20,079.61 and 8,581.43 is: 11,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,551.13 : 20,079.61 = 8,581.43 : x
  2. Step 2: Convert to fraction form
    14,551.13/20,079.61 = 8,581.43/x
  3. Step 3: Cross multiply
    14,551.13x = 20,079.61 × 8,581.43
  4. Step 4: Simplify right side
    14,551.13x = 172,311,645.79
  5. Step 5: Solve for x
    x = 172,311,645.79/14,551.13
  6. Step 6: Final answer
    x = 11,841.81

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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.