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Finding the Fourth Proportional to 18,197.70, 27,260.10 and 12,292.80

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Solution

The fourth proportional to 18,197.70, 27,260.10 and 12,292.80 is: 18,414.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,197.70 : 27,260.10 = 12,292.80 : x
  2. Step 2: Convert to fraction form
    18,197.70/27,260.10 = 12,292.80/x
  3. Step 3: Cross multiply
    18,197.70x = 27,260.10 × 12,292.80
  4. Step 4: Simplify right side
    18,197.70x = 335,102,957.28
  5. Step 5: Solve for x
    x = 335,102,957.28/18,197.70
  6. Step 6: Final answer
    x = 18,414.58

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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.