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Finding the Fourth Proportional to 8,879.28, 13,318.88 and 2,304.92

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Solution

The fourth proportional to 8,879.28, 13,318.88 and 2,304.92 is: 3,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.28 : 13,318.88 = 2,304.92 : x
  2. Step 2: Convert to fraction form
    8,879.28/13,318.88 = 2,304.92/x
  3. Step 3: Cross multiply
    8,879.28x = 13,318.88 × 2,304.92
  4. Step 4: Simplify right side
    8,879.28x = 30,698,952.89
  5. Step 5: Solve for x
    x = 30,698,952.89/8,879.28
  6. Step 6: Final answer
    x = 3,457.37

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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.