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Finding the Fourth Proportional to 18,102.62, 27,118.58 and 8,601.42

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Solution

The fourth proportional to 18,102.62, 27,118.58 and 8,601.42 is: 12,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.62 : 27,118.58 = 8,601.42 : x
  2. Step 2: Convert to fraction form
    18,102.62/27,118.58 = 8,601.42/x
  3. Step 3: Cross multiply
    18,102.62x = 27,118.58 × 8,601.42
  4. Step 4: Simplify right side
    18,102.62x = 233,258,183.94
  5. Step 5: Solve for x
    x = 233,258,183.94/18,102.62
  6. Step 6: Final answer
    x = 12,885.33

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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.