Home / 11,895.78-17,841.67-3,997.40

Finding the Fourth Proportional to 11,895.78, 17,841.67 and 3,997.40

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Solution

The fourth proportional to 11,895.78, 17,841.67 and 3,997.40 is: 5,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,895.78 : 17,841.67 = 3,997.40 : x
  2. Step 2: Convert to fraction form
    11,895.78/17,841.67 = 3,997.40/x
  3. Step 3: Cross multiply
    11,895.78x = 17,841.67 × 3,997.40
  4. Step 4: Simplify right side
    11,895.78x = 71,320,292.82
  5. Step 5: Solve for x
    x = 71,320,292.82/11,895.78
  6. Step 6: Final answer
    x = 5,995.43

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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.