Home / 10,128.52-15,192.78-2,732.68

Finding the Fourth Proportional to 10,128.52, 15,192.78 and 2,732.68

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Solution

The fourth proportional to 10,128.52, 15,192.78 and 2,732.68 is: 4,099.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.52 : 15,192.78 = 2,732.68 : x
  2. Step 2: Convert to fraction form
    10,128.52/15,192.78 = 2,732.68/x
  3. Step 3: Cross multiply
    10,128.52x = 15,192.78 × 2,732.68
  4. Step 4: Simplify right side
    10,128.52x = 41,517,006.05
  5. Step 5: Solve for x
    x = 41,517,006.05/10,128.52
  6. Step 6: Final answer
    x = 4,099.02

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Similar ratio
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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.