Home / 11,942.67-17,921.21-4,156.95

Finding the Fourth Proportional to 11,942.67, 17,921.21 and 4,156.95

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Solution

The fourth proportional to 11,942.67, 17,921.21 and 4,156.95 is: 6,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.67 : 17,921.21 = 4,156.95 : x
  2. Step 2: Convert to fraction form
    11,942.67/17,921.21 = 4,156.95/x
  3. Step 3: Cross multiply
    11,942.67x = 17,921.21 × 4,156.95
  4. Step 4: Simplify right side
    11,942.67x = 74,497,553.12
  5. Step 5: Solve for x
    x = 74,497,553.12/11,942.67
  6. Step 6: Final answer
    x = 6,237.93

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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.