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Finding the Fourth Proportional to 15,154.74, 22,721.22 and 6,384.90

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Solution

The fourth proportional to 15,154.74, 22,721.22 and 6,384.90 is: 9,572.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.74 : 22,721.22 = 6,384.90 : x
  2. Step 2: Convert to fraction form
    15,154.74/22,721.22 = 6,384.90/x
  3. Step 3: Cross multiply
    15,154.74x = 22,721.22 × 6,384.90
  4. Step 4: Simplify right side
    15,154.74x = 145,072,717.58
  5. Step 5: Solve for x
    x = 145,072,717.58/15,154.74
  6. Step 6: Final answer
    x = 9,572.76

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1.5x scale

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.