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Finding the Fourth Proportional to 18,406.42, 27,568.09 and 8,524.95

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Solution

The fourth proportional to 18,406.42, 27,568.09 and 8,524.95 is: 12,768.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.42 : 27,568.09 = 8,524.95 : x
  2. Step 2: Convert to fraction form
    18,406.42/27,568.09 = 8,524.95/x
  3. Step 3: Cross multiply
    18,406.42x = 27,568.09 × 8,524.95
  4. Step 4: Simplify right side
    18,406.42x = 235,016,588.85
  5. Step 5: Solve for x
    x = 235,016,588.85/18,406.42
  6. Step 6: Final answer
    x = 12,768.19

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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.