Home / 10,961.76-16,432.36-5,338.20

Finding the Fourth Proportional to 10,961.76, 16,432.36 and 5,338.20

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Solution

The fourth proportional to 10,961.76, 16,432.36 and 5,338.20 is: 8,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.76 : 16,432.36 = 5,338.20 : x
  2. Step 2: Convert to fraction form
    10,961.76/16,432.36 = 5,338.20/x
  3. Step 3: Cross multiply
    10,961.76x = 16,432.36 × 5,338.20
  4. Step 4: Simplify right side
    10,961.76x = 87,719,224.15
  5. Step 5: Solve for x
    x = 87,719,224.15/10,961.76
  6. Step 6: Final answer
    x = 8,002.29

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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.