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Finding the Fourth Proportional to 18,614.78, 27,921.94 and 5,466.68

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Solution

The fourth proportional to 18,614.78, 27,921.94 and 5,466.68 is: 8,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.78 : 27,921.94 = 5,466.68 : x
  2. Step 2: Convert to fraction form
    18,614.78/27,921.94 = 5,466.68/x
  3. Step 3: Cross multiply
    18,614.78x = 27,921.94 × 5,466.68
  4. Step 4: Simplify right side
    18,614.78x = 152,640,310.96
  5. Step 5: Solve for x
    x = 152,640,310.96/18,614.78
  6. Step 6: Final answer
    x = 8,199.95

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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.