Home / 8,286.20-12,426.09-2,738.05

Finding the Fourth Proportional to 8,286.20, 12,426.09 and 2,738.05

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Solution

The fourth proportional to 8,286.20, 12,426.09 and 2,738.05 is: 4,106.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.20 : 12,426.09 = 2,738.05 : x
  2. Step 2: Convert to fraction form
    8,286.20/12,426.09 = 2,738.05/x
  3. Step 3: Cross multiply
    8,286.20x = 12,426.09 × 2,738.05
  4. Step 4: Simplify right side
    8,286.20x = 34,023,255.72
  5. Step 5: Solve for x
    x = 34,023,255.72/8,286.20
  6. Step 6: Final answer
    x = 4,106.01

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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.