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Finding the Fourth Proportional to 12,166.78, 18,250.14 and 2,932.78

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Solution

The fourth proportional to 12,166.78, 18,250.14 and 2,932.78 is: 4,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.78 : 18,250.14 = 2,932.78 : x
  2. Step 2: Convert to fraction form
    12,166.78/18,250.14 = 2,932.78/x
  3. Step 3: Cross multiply
    12,166.78x = 18,250.14 × 2,932.78
  4. Step 4: Simplify right side
    12,166.78x = 53,523,645.59
  5. Step 5: Solve for x
    x = 53,523,645.59/12,166.78
  6. Step 6: Final answer
    x = 4,399.16

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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.