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Finding the Fourth Proportional to 8,963, 12,366.92 and 5,425.46

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Solution

The fourth proportional to 8,963, 12,366.92 and 5,425.46 is: 7,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963 : 12,366.92 = 5,425.46 : x
  2. Step 2: Convert to fraction form
    8,963/12,366.92 = 5,425.46/x
  3. Step 3: Cross multiply
    8,963x = 12,366.92 × 5,425.46
  4. Step 4: Simplify right side
    8,963x = 67,096,229.78
  5. Step 5: Solve for x
    x = 67,096,229.78/8,963
  6. Step 6: Final answer
    x = 7,485.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.