Home / 10,119.26-15,180.16-5,432.83

Finding the Fourth Proportional to 10,119.26, 15,180.16 and 5,432.83

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Solution

The fourth proportional to 10,119.26, 15,180.16 and 5,432.83 is: 8,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.26 : 15,180.16 = 5,432.83 : x
  2. Step 2: Convert to fraction form
    10,119.26/15,180.16 = 5,432.83/x
  3. Step 3: Cross multiply
    10,119.26x = 15,180.16 × 5,432.83
  4. Step 4: Simplify right side
    10,119.26x = 82,471,139.17
  5. Step 5: Solve for x
    x = 82,471,139.17/10,119.26
  6. Step 6: Final answer
    x = 8,149.92

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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.