Home / 13,310.96-19,959.44-3,949.68

Finding the Fourth Proportional to 13,310.96, 19,959.44 and 3,949.68

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Solution

The fourth proportional to 13,310.96, 19,959.44 and 3,949.68 is: 5,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.96 : 19,959.44 = 3,949.68 : x
  2. Step 2: Convert to fraction form
    13,310.96/19,959.44 = 3,949.68/x
  3. Step 3: Cross multiply
    13,310.96x = 19,959.44 × 3,949.68
  4. Step 4: Simplify right side
    13,310.96x = 78,833,400.98
  5. Step 5: Solve for x
    x = 78,833,400.98/13,310.96
  6. Step 6: Final answer
    x = 5,922.44

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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.