Home / 11,826.89-17,741.70-3,930.11

Finding the Fourth Proportional to 11,826.89, 17,741.70 and 3,930.11

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Solution

The fourth proportional to 11,826.89, 17,741.70 and 3,930.11 is: 5,895.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.89 : 17,741.70 = 3,930.11 : x
  2. Step 2: Convert to fraction form
    11,826.89/17,741.70 = 3,930.11/x
  3. Step 3: Cross multiply
    11,826.89x = 17,741.70 × 3,930.11
  4. Step 4: Simplify right side
    11,826.89x = 69,726,743.88
  5. Step 5: Solve for x
    x = 69,726,743.88/11,826.89
  6. Step 6: Final answer
    x = 5,895.61

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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.