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Finding the Fourth Proportional to 8,338.28, 12,505.79 and 3,073.28

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Solution

The fourth proportional to 8,338.28, 12,505.79 and 3,073.28 is: 4,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.28 : 12,505.79 = 3,073.28 : x
  2. Step 2: Convert to fraction form
    8,338.28/12,505.79 = 3,073.28/x
  3. Step 3: Cross multiply
    8,338.28x = 12,505.79 × 3,073.28
  4. Step 4: Simplify right side
    8,338.28x = 38,433,739.45
  5. Step 5: Solve for x
    x = 38,433,739.45/8,338.28
  6. Step 6: Final answer
    x = 4,609.32

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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.