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Finding the Fourth Proportional to 18,565.48, 27,855.51 and 8,169.94

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Solution

The fourth proportional to 18,565.48, 27,855.51 and 8,169.94 is: 12,258.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.48 : 27,855.51 = 8,169.94 : x
  2. Step 2: Convert to fraction form
    18,565.48/27,855.51 = 8,169.94/x
  3. Step 3: Cross multiply
    18,565.48x = 27,855.51 × 8,169.94
  4. Step 4: Simplify right side
    18,565.48x = 227,577,775.73
  5. Step 5: Solve for x
    x = 227,577,775.73/18,565.48
  6. Step 6: Final answer
    x = 12,258.12

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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.