Home / 15,122.39-22,688.20-7,732.04

Finding the Fourth Proportional to 15,122.39, 22,688.20 and 7,732.04

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Solution

The fourth proportional to 15,122.39, 22,688.20 and 7,732.04 is: 11,600.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.39 : 22,688.20 = 7,732.04 : x
  2. Step 2: Convert to fraction form
    15,122.39/22,688.20 = 7,732.04/x
  3. Step 3: Cross multiply
    15,122.39x = 22,688.20 × 7,732.04
  4. Step 4: Simplify right side
    15,122.39x = 175,426,069.93
  5. Step 5: Solve for x
    x = 175,426,069.93/15,122.39
  6. Step 6: Final answer
    x = 11,600.42

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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.