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Finding the Fourth Proportional to 13,425.62, 18,532.52 and 8,947.73

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Solution

The fourth proportional to 13,425.62, 18,532.52 and 8,947.73 is: 12,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.62 : 18,532.52 = 8,947.73 : x
  2. Step 2: Convert to fraction form
    13,425.62/18,532.52 = 8,947.73/x
  3. Step 3: Cross multiply
    13,425.62x = 18,532.52 × 8,947.73
  4. Step 4: Simplify right side
    13,425.62x = 165,824,056.27
  5. Step 5: Solve for x
    x = 165,824,056.27/13,425.62
  6. Step 6: Final answer
    x = 12,351.32

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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.