Home / 10,529.70-15,791.10-3,508.20

Finding the Fourth Proportional to 10,529.70, 15,791.10 and 3,508.20

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Solution

The fourth proportional to 10,529.70, 15,791.10 and 3,508.20 is: 5,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,529.70 : 15,791.10 = 3,508.20 : x
  2. Step 2: Convert to fraction form
    10,529.70/15,791.10 = 3,508.20/x
  3. Step 3: Cross multiply
    10,529.70x = 15,791.10 × 3,508.20
  4. Step 4: Simplify right side
    10,529.70x = 55,398,337.02
  5. Step 5: Solve for x
    x = 55,398,337.02/10,529.70
  6. Step 6: Final answer
    x = 5,261.15

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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.