Home / 10,939.38-15,097.56-6,159.46

Finding the Fourth Proportional to 10,939.38, 15,097.56 and 6,159.46

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Solution

The fourth proportional to 10,939.38, 15,097.56 and 6,159.46 is: 8,500.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.38 : 15,097.56 = 6,159.46 : x
  2. Step 2: Convert to fraction form
    10,939.38/15,097.56 = 6,159.46/x
  3. Step 3: Cross multiply
    10,939.38x = 15,097.56 × 6,159.46
  4. Step 4: Simplify right side
    10,939.38x = 92,992,816.92
  5. Step 5: Solve for x
    x = 92,992,816.92/10,939.38
  6. Step 6: Final answer
    x = 8,500.74

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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.