Home / 18,179.20-27,257.16-8,687.62

Finding the Fourth Proportional to 18,179.20, 27,257.16 and 8,687.62

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Solution

The fourth proportional to 18,179.20, 27,257.16 and 8,687.62 is: 13,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.20 : 27,257.16 = 8,687.62 : x
  2. Step 2: Convert to fraction form
    18,179.20/27,257.16 = 8,687.62/x
  3. Step 3: Cross multiply
    18,179.20x = 27,257.16 × 8,687.62
  4. Step 4: Simplify right side
    18,179.20x = 236,799,848.36
  5. Step 5: Solve for x
    x = 236,799,848.36/18,179.20
  6. Step 6: Final answer
    x = 13,025.87

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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.