Home / 15,115.20-22,654.56-7,717.44

Finding the Fourth Proportional to 15,115.20, 22,654.56 and 7,717.44

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Solution

The fourth proportional to 15,115.20, 22,654.56 and 7,717.44 is: 11,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.20 : 22,654.56 = 7,717.44 : x
  2. Step 2: Convert to fraction form
    15,115.20/22,654.56 = 7,717.44/x
  3. Step 3: Cross multiply
    15,115.20x = 22,654.56 × 7,717.44
  4. Step 4: Simplify right side
    15,115.20x = 174,835,207.53
  5. Step 5: Solve for x
    x = 174,835,207.53/15,115.20
  6. Step 6: Final answer
    x = 11,566.85

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1.5x scale

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.