Home / 10,511.92-15,764.03-3,490.66

Finding the Fourth Proportional to 10,511.92, 15,764.03 and 3,490.66

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Solution

The fourth proportional to 10,511.92, 15,764.03 and 3,490.66 is: 5,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.92 : 15,764.03 = 3,490.66 : x
  2. Step 2: Convert to fraction form
    10,511.92/15,764.03 = 3,490.66/x
  3. Step 3: Cross multiply
    10,511.92x = 15,764.03 × 3,490.66
  4. Step 4: Simplify right side
    10,511.92x = 55,026,772.69
  5. Step 5: Solve for x
    x = 55,026,772.69/10,511.92
  6. Step 6: Final answer
    x = 5,234.70

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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.