Home / 15,138.43-22,711.29-4,750.18

Finding the Fourth Proportional to 15,138.43, 22,711.29 and 4,750.18

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Solution

The fourth proportional to 15,138.43, 22,711.29 and 4,750.18 is: 7,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.43 : 22,711.29 = 4,750.18 : x
  2. Step 2: Convert to fraction form
    15,138.43/22,711.29 = 4,750.18/x
  3. Step 3: Cross multiply
    15,138.43x = 22,711.29 × 4,750.18
  4. Step 4: Simplify right side
    15,138.43x = 107,882,715.53
  5. Step 5: Solve for x
    x = 107,882,715.53/15,138.43
  6. Step 6: Final answer
    x = 7,126.41

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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.