Home / 11,377.20-17,065.78-3,169.20

Finding the Fourth Proportional to 11,377.20, 17,065.78 and 3,169.20

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Solution

The fourth proportional to 11,377.20, 17,065.78 and 3,169.20 is: 4,753.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,377.20 : 17,065.78 = 3,169.20 : x
  2. Step 2: Convert to fraction form
    11,377.20/17,065.78 = 3,169.20/x
  3. Step 3: Cross multiply
    11,377.20x = 17,065.78 × 3,169.20
  4. Step 4: Simplify right side
    11,377.20x = 54,084,869.98
  5. Step 5: Solve for x
    x = 54,084,869.98/11,377.20
  6. Step 6: Final answer
    x = 4,753.79

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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.