Home / 11,861.06-17,791.31-3,855.82

Finding the Fourth Proportional to 11,861.06, 17,791.31 and 3,855.82

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Solution

The fourth proportional to 11,861.06, 17,791.31 and 3,855.82 is: 5,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.06 : 17,791.31 = 3,855.82 : x
  2. Step 2: Convert to fraction form
    11,861.06/17,791.31 = 3,855.82/x
  3. Step 3: Cross multiply
    11,861.06x = 17,791.31 × 3,855.82
  4. Step 4: Simplify right side
    11,861.06x = 68,600,113.57
  5. Step 5: Solve for x
    x = 68,600,113.57/11,861.06
  6. Step 6: Final answer
    x = 5,783.64

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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.