Home / 11,686.38-17,529.57-3,478.38

Finding the Fourth Proportional to 11,686.38, 17,529.57 and 3,478.38

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Solution

The fourth proportional to 11,686.38, 17,529.57 and 3,478.38 is: 5,217.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.38 : 17,529.57 = 3,478.38 : x
  2. Step 2: Convert to fraction form
    11,686.38/17,529.57 = 3,478.38/x
  3. Step 3: Cross multiply
    11,686.38x = 17,529.57 × 3,478.38
  4. Step 4: Simplify right side
    11,686.38x = 60,974,400.66
  5. Step 5: Solve for x
    x = 60,974,400.66/11,686.38
  6. Step 6: Final answer
    x = 5,217.56

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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.