Home / 15,171.72-22,759.74-4,781.04

Finding the Fourth Proportional to 15,171.72, 22,759.74 and 4,781.04

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Solution

The fourth proportional to 15,171.72, 22,759.74 and 4,781.04 is: 7,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.72 : 22,759.74 = 4,781.04 : x
  2. Step 2: Convert to fraction form
    15,171.72/22,759.74 = 4,781.04/x
  3. Step 3: Cross multiply
    15,171.72x = 22,759.74 × 4,781.04
  4. Step 4: Simplify right side
    15,171.72x = 108,815,227.33
  5. Step 5: Solve for x
    x = 108,815,227.33/15,171.72
  6. Step 6: Final answer
    x = 7,172.24

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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.