Home / 11,926.88-17,890.31-3,718.88

Finding the Fourth Proportional to 11,926.88, 17,890.31 and 3,718.88

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Solution

The fourth proportional to 11,926.88, 17,890.31 and 3,718.88 is: 5,578.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.88 : 17,890.31 = 3,718.88 : x
  2. Step 2: Convert to fraction form
    11,926.88/17,890.31 = 3,718.88/x
  3. Step 3: Cross multiply
    11,926.88x = 17,890.31 × 3,718.88
  4. Step 4: Simplify right side
    11,926.88x = 66,531,835.90
  5. Step 5: Solve for x
    x = 66,531,835.90/11,926.88
  6. Step 6: Final answer
    x = 5,578.31

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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.