Home / 18,281.60-27,414.30-8,423.90

Finding the Fourth Proportional to 18,281.60, 27,414.30 and 8,423.90

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Solution

The fourth proportional to 18,281.60, 27,414.30 and 8,423.90 is: 12,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.60 : 27,414.30 = 8,423.90 : x
  2. Step 2: Convert to fraction form
    18,281.60/27,414.30 = 8,423.90/x
  3. Step 3: Cross multiply
    18,281.60x = 27,414.30 × 8,423.90
  4. Step 4: Simplify right side
    18,281.60x = 230,935,321.77
  5. Step 5: Solve for x
    x = 230,935,321.77/18,281.60
  6. Step 6: Final answer
    x = 12,632.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.