Home / 18,115.64-27,169.68-4,966.88

Finding the Fourth Proportional to 18,115.64, 27,169.68 and 4,966.88

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Solution

The fourth proportional to 18,115.64, 27,169.68 and 4,966.88 is: 7,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.64 : 27,169.68 = 4,966.88 : x
  2. Step 2: Convert to fraction form
    18,115.64/27,169.68 = 4,966.88/x
  3. Step 3: Cross multiply
    18,115.64x = 27,169.68 × 4,966.88
  4. Step 4: Simplify right side
    18,115.64x = 134,948,540.20
  5. Step 5: Solve for x
    x = 134,948,540.20/18,115.64
  6. Step 6: Final answer
    x = 7,449.28

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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.