Home / 11,788.69-17,679.25-3,889.44

Finding the Fourth Proportional to 11,788.69, 17,679.25 and 3,889.44

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Solution

The fourth proportional to 11,788.69, 17,679.25 and 3,889.44 is: 5,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.69 : 17,679.25 = 3,889.44 : x
  2. Step 2: Convert to fraction form
    11,788.69/17,679.25 = 3,889.44/x
  3. Step 3: Cross multiply
    11,788.69x = 17,679.25 × 3,889.44
  4. Step 4: Simplify right side
    11,788.69x = 68,762,382.12
  5. Step 5: Solve for x
    x = 68,762,382.12/11,788.69
  6. Step 6: Final answer
    x = 5,832.91

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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.