Home / 12,108.38-18,163.24-4,317.19

Finding the Fourth Proportional to 12,108.38, 18,163.24 and 4,317.19

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Solution

The fourth proportional to 12,108.38, 18,163.24 and 4,317.19 is: 6,476.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.38 : 18,163.24 = 4,317.19 : x
  2. Step 2: Convert to fraction form
    12,108.38/18,163.24 = 4,317.19/x
  3. Step 3: Cross multiply
    12,108.38x = 18,163.24 × 4,317.19
  4. Step 4: Simplify right side
    12,108.38x = 78,414,101.89
  5. Step 5: Solve for x
    x = 78,414,101.89/12,108.38
  6. Step 6: Final answer
    x = 6,476.02

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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.