Home / 10,167.28-15,251.91-3,147.01

Finding the Fourth Proportional to 10,167.28, 15,251.91 and 3,147.01

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Solution

The fourth proportional to 10,167.28, 15,251.91 and 3,147.01 is: 4,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,167.28 : 15,251.91 = 3,147.01 : x
  2. Step 2: Convert to fraction form
    10,167.28/15,251.91 = 3,147.01/x
  3. Step 3: Cross multiply
    10,167.28x = 15,251.91 × 3,147.01
  4. Step 4: Simplify right side
    10,167.28x = 47,997,913.29
  5. Step 5: Solve for x
    x = 47,997,913.29/10,167.28
  6. Step 6: Final answer
    x = 4,720.82

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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.