Home / 13,961.67-20,942.49-4,107.86

Finding the Fourth Proportional to 13,961.67, 20,942.49 and 4,107.86

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Solution

The fourth proportional to 13,961.67, 20,942.49 and 4,107.86 is: 6,161.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.67 : 20,942.49 = 4,107.86 : x
  2. Step 2: Convert to fraction form
    13,961.67/20,942.49 = 4,107.86/x
  3. Step 3: Cross multiply
    13,961.67x = 20,942.49 × 4,107.86
  4. Step 4: Simplify right side
    13,961.67x = 86,028,884.73
  5. Step 5: Solve for x
    x = 86,028,884.73/13,961.67
  6. Step 6: Final answer
    x = 6,161.79

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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.