Home / 14,517.12-20,033.38-8,143.73

Finding the Fourth Proportional to 14,517.12, 20,033.38 and 8,143.73

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Solution

The fourth proportional to 14,517.12, 20,033.38 and 8,143.73 is: 11,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,517.12 : 20,033.38 = 8,143.73 : x
  2. Step 2: Convert to fraction form
    14,517.12/20,033.38 = 8,143.73/x
  3. Step 3: Cross multiply
    14,517.12x = 20,033.38 × 8,143.73
  4. Step 4: Simplify right side
    14,517.12x = 163,146,348.86
  5. Step 5: Solve for x
    x = 163,146,348.86/14,517.12
  6. Step 6: Final answer
    x = 11,238.20

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Double scale
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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.