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Finding the Fourth Proportional to 8,552.72, 12,831.36 and 2,709.44

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Solution

The fourth proportional to 8,552.72, 12,831.36 and 2,709.44 is: 4,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,552.72 : 12,831.36 = 2,709.44 : x
  2. Step 2: Convert to fraction form
    8,552.72/12,831.36 = 2,709.44/x
  3. Step 3: Cross multiply
    8,552.72x = 12,831.36 × 2,709.44
  4. Step 4: Simplify right side
    8,552.72x = 34,765,800.04
  5. Step 5: Solve for x
    x = 34,765,800.04/8,552.72
  6. Step 6: Final answer
    x = 4,064.88

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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.