Home / 11,771.80-17,655.82-3,874.36

Finding the Fourth Proportional to 11,771.80, 17,655.82 and 3,874.36

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Solution

The fourth proportional to 11,771.80, 17,655.82 and 3,874.36 is: 5,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.80 : 17,655.82 = 3,874.36 : x
  2. Step 2: Convert to fraction form
    11,771.80/17,655.82 = 3,874.36/x
  3. Step 3: Cross multiply
    11,771.80x = 17,655.82 × 3,874.36
  4. Step 4: Simplify right side
    11,771.80x = 68,405,002.78
  5. Step 5: Solve for x
    x = 68,405,002.78/11,771.80
  6. Step 6: Final answer
    x = 5,810.92

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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.