Home / 12,167.28-18,251.01-4,269.42

Finding the Fourth Proportional to 12,167.28, 18,251.01 and 4,269.42

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Solution

The fourth proportional to 12,167.28, 18,251.01 and 4,269.42 is: 6,404.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.28 : 18,251.01 = 4,269.42 : x
  2. Step 2: Convert to fraction form
    12,167.28/18,251.01 = 4,269.42/x
  3. Step 3: Cross multiply
    12,167.28x = 18,251.01 × 4,269.42
  4. Step 4: Simplify right side
    12,167.28x = 77,921,227.11
  5. Step 5: Solve for x
    x = 77,921,227.11/12,167.28
  6. Step 6: Final answer
    x = 6,404.16

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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.