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Finding the Fourth Proportional to 18,633.54, 27,949.65 and 8,103.54

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Solution

The fourth proportional to 18,633.54, 27,949.65 and 8,103.54 is: 12,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.54 : 27,949.65 = 8,103.54 : x
  2. Step 2: Convert to fraction form
    18,633.54/27,949.65 = 8,103.54/x
  3. Step 3: Cross multiply
    18,633.54x = 27,949.65 × 8,103.54
  4. Step 4: Simplify right side
    18,633.54x = 226,491,106.76
  5. Step 5: Solve for x
    x = 226,491,106.76/18,633.54
  6. Step 6: Final answer
    x = 12,155.02

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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.