Home / 11,989.22-17,992.04-4,198.05

Finding the Fourth Proportional to 11,989.22, 17,992.04 and 4,198.05

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Solution

The fourth proportional to 11,989.22, 17,992.04 and 4,198.05 is: 6,299.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.22 : 17,992.04 = 4,198.05 : x
  2. Step 2: Convert to fraction form
    11,989.22/17,992.04 = 4,198.05/x
  3. Step 3: Cross multiply
    11,989.22x = 17,992.04 × 4,198.05
  4. Step 4: Simplify right side
    11,989.22x = 75,531,462.53
  5. Step 5: Solve for x
    x = 75,531,462.53/11,989.22
  6. Step 6: Final answer
    x = 6,299.95

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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.