Home / 8,939.52-12,339.62-5,539.14

Finding the Fourth Proportional to 8,939.52, 12,339.62 and 5,539.14

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Solution

The fourth proportional to 8,939.52, 12,339.62 and 5,539.14 is: 7,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.52 : 12,339.62 = 5,539.14 : x
  2. Step 2: Convert to fraction form
    8,939.52/12,339.62 = 5,539.14/x
  3. Step 3: Cross multiply
    8,939.52x = 12,339.62 × 5,539.14
  4. Step 4: Simplify right side
    8,939.52x = 68,350,882.73
  5. Step 5: Solve for x
    x = 68,350,882.73/8,939.52
  6. Step 6: Final answer
    x = 7,645.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.