Home / 11,974.28-17,961.92-3,540.80

Finding the Fourth Proportional to 11,974.28, 17,961.92 and 3,540.80

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Solution

The fourth proportional to 11,974.28, 17,961.92 and 3,540.80 is: 5,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,974.28 : 17,961.92 = 3,540.80 : x
  2. Step 2: Convert to fraction form
    11,974.28/17,961.92 = 3,540.80/x
  3. Step 3: Cross multiply
    11,974.28x = 17,961.92 × 3,540.80
  4. Step 4: Simplify right side
    11,974.28x = 63,599,566.34
  5. Step 5: Solve for x
    x = 63,599,566.34/11,974.28
  6. Step 6: Final answer
    x = 5,311.35

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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.