Home / 11,971.26-17,949.11-4,949.39

Finding the Fourth Proportional to 11,971.26, 17,949.11 and 4,949.39

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Solution

The fourth proportional to 11,971.26, 17,949.11 and 4,949.39 is: 7,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.26 : 17,949.11 = 4,949.39 : x
  2. Step 2: Convert to fraction form
    11,971.26/17,949.11 = 4,949.39/x
  3. Step 3: Cross multiply
    11,971.26x = 17,949.11 × 4,949.39
  4. Step 4: Simplify right side
    11,971.26x = 88,837,142.98
  5. Step 5: Solve for x
    x = 88,837,142.98/11,971.26
  6. Step 6: Final answer
    x = 7,420.87

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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.