Home / 10,821.28-16,233.78-3,425.62

Finding the Fourth Proportional to 10,821.28, 16,233.78 and 3,425.62

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Solution

The fourth proportional to 10,821.28, 16,233.78 and 3,425.62 is: 5,139.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.28 : 16,233.78 = 3,425.62 : x
  2. Step 2: Convert to fraction form
    10,821.28/16,233.78 = 3,425.62/x
  3. Step 3: Cross multiply
    10,821.28x = 16,233.78 × 3,425.62
  4. Step 4: Simplify right side
    10,821.28x = 55,610,761.44
  5. Step 5: Solve for x
    x = 55,610,761.44/10,821.28
  6. Step 6: Final answer
    x = 5,139.02

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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.