Home / 7,913.66-11,872.78-3,747.92

Finding the Fourth Proportional to 7,913.66, 11,872.78 and 3,747.92

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Solution

The fourth proportional to 7,913.66, 11,872.78 and 3,747.92 is: 5,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.66 : 11,872.78 = 3,747.92 : x
  2. Step 2: Convert to fraction form
    7,913.66/11,872.78 = 3,747.92/x
  3. Step 3: Cross multiply
    7,913.66x = 11,872.78 × 3,747.92
  4. Step 4: Simplify right side
    7,913.66x = 44,498,160.88
  5. Step 5: Solve for x
    x = 44,498,160.88/7,913.66
  6. Step 6: Final answer
    x = 5,622.96

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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.