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Finding the Fourth Proportional to 18,040.68, 27,061.48 and 8,550.78

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Solution

The fourth proportional to 18,040.68, 27,061.48 and 8,550.78 is: 12,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.68 : 27,061.48 = 8,550.78 : x
  2. Step 2: Convert to fraction form
    18,040.68/27,061.48 = 8,550.78/x
  3. Step 3: Cross multiply
    18,040.68x = 27,061.48 × 8,550.78
  4. Step 4: Simplify right side
    18,040.68x = 231,396,583.89
  5. Step 5: Solve for x
    x = 231,396,583.89/18,040.68
  6. Step 6: Final answer
    x = 12,826.38

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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.