Home / 8,109.39-12,163.25-2,186.03

Finding the Fourth Proportional to 8,109.39, 12,163.25 and 2,186.03

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Solution

The fourth proportional to 8,109.39, 12,163.25 and 2,186.03 is: 3,278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.39 : 12,163.25 = 2,186.03 : x
  2. Step 2: Convert to fraction form
    8,109.39/12,163.25 = 2,186.03/x
  3. Step 3: Cross multiply
    8,109.39x = 12,163.25 × 2,186.03
  4. Step 4: Simplify right side
    8,109.39x = 26,589,229.40
  5. Step 5: Solve for x
    x = 26,589,229.40/8,109.39
  6. Step 6: Final answer
    x = 3,278.82

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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.