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Finding the Fourth Proportional to 15,310.11, 22,943.25 and 8,722.68

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Solution

The fourth proportional to 15,310.11, 22,943.25 and 8,722.68 is: 13,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.11 : 22,943.25 = 8,722.68 : x
  2. Step 2: Convert to fraction form
    15,310.11/22,943.25 = 8,722.68/x
  3. Step 3: Cross multiply
    15,310.11x = 22,943.25 × 8,722.68
  4. Step 4: Simplify right side
    15,310.11x = 200,126,627.91
  5. Step 5: Solve for x
    x = 200,126,627.91/15,310.11
  6. Step 6: Final answer
    x = 13,071.53

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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.