Home / 8,469.28-12,707.56-4,569.12

Finding the Fourth Proportional to 8,469.28, 12,707.56 and 4,569.12

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Solution

The fourth proportional to 8,469.28, 12,707.56 and 4,569.12 is: 6,855.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.28 : 12,707.56 = 4,569.12 : x
  2. Step 2: Convert to fraction form
    8,469.28/12,707.56 = 4,569.12/x
  3. Step 3: Cross multiply
    8,469.28x = 12,707.56 × 4,569.12
  4. Step 4: Simplify right side
    8,469.28x = 58,062,366.55
  5. Step 5: Solve for x
    x = 58,062,366.55/8,469.28
  6. Step 6: Final answer
    x = 6,855.64

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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.