Home / 12,100.05-18,143.28-4,198.86

Finding the Fourth Proportional to 12,100.05, 18,143.28 and 4,198.86

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Solution

The fourth proportional to 12,100.05, 18,143.28 and 4,198.86 is: 6,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.05 : 18,143.28 = 4,198.86 : x
  2. Step 2: Convert to fraction form
    12,100.05/18,143.28 = 4,198.86/x
  3. Step 3: Cross multiply
    12,100.05x = 18,143.28 × 4,198.86
  4. Step 4: Simplify right side
    12,100.05x = 76,181,092.66
  5. Step 5: Solve for x
    x = 76,181,092.66/12,100.05
  6. Step 6: Final answer
    x = 6,295.93

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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.