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Finding the Fourth Proportional to 18,468.62, 27,683.79 and 8,599.78

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Solution

The fourth proportional to 18,468.62, 27,683.79 and 8,599.78 is: 12,890.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.62 : 27,683.79 = 8,599.78 : x
  2. Step 2: Convert to fraction form
    18,468.62/27,683.79 = 8,599.78/x
  3. Step 3: Cross multiply
    18,468.62x = 27,683.79 × 8,599.78
  4. Step 4: Simplify right side
    18,468.62x = 238,074,503.57
  5. Step 5: Solve for x
    x = 238,074,503.57/18,468.62
  6. Step 6: Final answer
    x = 12,890.76

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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.