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Finding the Fourth Proportional to 8,882.72, 13,326.12 and 3,039.32

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Solution

The fourth proportional to 8,882.72, 13,326.12 and 3,039.32 is: 4,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,882.72 : 13,326.12 = 3,039.32 : x
  2. Step 2: Convert to fraction form
    8,882.72/13,326.12 = 3,039.32/x
  3. Step 3: Cross multiply
    8,882.72x = 13,326.12 × 3,039.32
  4. Step 4: Simplify right side
    8,882.72x = 40,502,343.04
  5. Step 5: Solve for x
    x = 40,502,343.04/8,882.72
  6. Step 6: Final answer
    x = 4,559.68

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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.