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Finding the Fourth Proportional to 12,601.88, 18,902.87 and 3,836.87

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Solution

The fourth proportional to 12,601.88, 18,902.87 and 3,836.87 is: 5,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.88 : 18,902.87 = 3,836.87 : x
  2. Step 2: Convert to fraction form
    12,601.88/18,902.87 = 3,836.87/x
  3. Step 3: Cross multiply
    12,601.88x = 18,902.87 × 3,836.87
  4. Step 4: Simplify right side
    12,601.88x = 72,527,826.39
  5. Step 5: Solve for x
    x = 72,527,826.39/12,601.88
  6. Step 6: Final answer
    x = 5,755.32

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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.