Home / 15,147.12-22,720.94-5,791.48

Finding the Fourth Proportional to 15,147.12, 22,720.94 and 5,791.48

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Solution

The fourth proportional to 15,147.12, 22,720.94 and 5,791.48 is: 8,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.12 : 22,720.94 = 5,791.48 : x
  2. Step 2: Convert to fraction form
    15,147.12/22,720.94 = 5,791.48/x
  3. Step 3: Cross multiply
    15,147.12x = 22,720.94 × 5,791.48
  4. Step 4: Simplify right side
    15,147.12x = 131,587,869.59
  5. Step 5: Solve for x
    x = 131,587,869.59/15,147.12
  6. Step 6: Final answer
    x = 8,687.32

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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.