Home / 15,168.72-22,755.24-4,778.04

Finding the Fourth Proportional to 15,168.72, 22,755.24 and 4,778.04

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Solution

The fourth proportional to 15,168.72, 22,755.24 and 4,778.04 is: 7,167.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.72 : 22,755.24 = 4,778.04 : x
  2. Step 2: Convert to fraction form
    15,168.72/22,755.24 = 4,778.04/x
  3. Step 3: Cross multiply
    15,168.72x = 22,755.24 × 4,778.04
  4. Step 4: Simplify right side
    15,168.72x = 108,725,446.93
  5. Step 5: Solve for x
    x = 108,725,446.93/15,168.72
  6. Step 6: Final answer
    x = 7,167.74

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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.