Home / 15,132.42-22,677.87-7,721.29

Finding the Fourth Proportional to 15,132.42, 22,677.87 and 7,721.29

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Solution

The fourth proportional to 15,132.42, 22,677.87 and 7,721.29 is: 11,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.42 : 22,677.87 = 7,721.29 : x
  2. Step 2: Convert to fraction form
    15,132.42/22,677.87 = 7,721.29/x
  3. Step 3: Cross multiply
    15,132.42x = 22,677.87 × 7,721.29
  4. Step 4: Simplify right side
    15,132.42x = 175,102,468.15
  5. Step 5: Solve for x
    x = 175,102,468.15/15,132.42
  6. Step 6: Final answer
    x = 11,571.35

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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.