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Finding the Fourth Proportional to 18,104.78, 27,160.79 and 6,258.98

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Solution

The fourth proportional to 18,104.78, 27,160.79 and 6,258.98 is: 9,389.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.78 : 27,160.79 = 6,258.98 : x
  2. Step 2: Convert to fraction form
    18,104.78/27,160.79 = 6,258.98/x
  3. Step 3: Cross multiply
    18,104.78x = 27,160.79 × 6,258.98
  4. Step 4: Simplify right side
    18,104.78x = 169,998,674.30
  5. Step 5: Solve for x
    x = 169,998,674.30/18,104.78
  6. Step 6: Final answer
    x = 9,389.71

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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.