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Finding the Fourth Proportional to 12,392.57, 17,101.89 and 6,727.38

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Solution

The fourth proportional to 12,392.57, 17,101.89 and 6,727.38 is: 9,283.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.57 : 17,101.89 = 6,727.38 : x
  2. Step 2: Convert to fraction form
    12,392.57/17,101.89 = 6,727.38/x
  3. Step 3: Cross multiply
    12,392.57x = 17,101.89 × 6,727.38
  4. Step 4: Simplify right side
    12,392.57x = 115,050,793.60
  5. Step 5: Solve for x
    x = 115,050,793.60/12,392.57
  6. Step 6: Final answer
    x = 9,283.85

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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.