Home / 12,108.82-18,163.19-3,224.15

Finding the Fourth Proportional to 12,108.82, 18,163.19 and 3,224.15

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Solution

The fourth proportional to 12,108.82, 18,163.19 and 3,224.15 is: 4,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.82 : 18,163.19 = 3,224.15 : x
  2. Step 2: Convert to fraction form
    12,108.82/18,163.19 = 3,224.15/x
  3. Step 3: Cross multiply
    12,108.82x = 18,163.19 × 3,224.15
  4. Step 4: Simplify right side
    12,108.82x = 58,560,742.10
  5. Step 5: Solve for x
    x = 58,560,742.10/12,108.82
  6. Step 6: Final answer
    x = 4,836.21

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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.