Home / 18,171.28-27,259.26-5,691.88

Finding the Fourth Proportional to 18,171.28, 27,259.26 and 5,691.88

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Solution

The fourth proportional to 18,171.28, 27,259.26 and 5,691.88 is: 8,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.28 : 27,259.26 = 5,691.88 : x
  2. Step 2: Convert to fraction form
    18,171.28/27,259.26 = 5,691.88/x
  3. Step 3: Cross multiply
    18,171.28x = 27,259.26 × 5,691.88
  4. Step 4: Simplify right side
    18,171.28x = 155,156,436.81
  5. Step 5: Solve for x
    x = 155,156,436.81/18,171.28
  6. Step 6: Final answer
    x = 8,538.55

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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.