Home / 13,309.70-19,961.14-3,947.53

Finding the Fourth Proportional to 13,309.70, 19,961.14 and 3,947.53

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Solution

The fourth proportional to 13,309.70, 19,961.14 and 3,947.53 is: 5,920.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.70 : 19,961.14 = 3,947.53 : x
  2. Step 2: Convert to fraction form
    13,309.70/19,961.14 = 3,947.53/x
  3. Step 3: Cross multiply
    13,309.70x = 19,961.14 × 3,947.53
  4. Step 4: Simplify right side
    13,309.70x = 78,797,198.98
  5. Step 5: Solve for x
    x = 78,797,198.98/13,309.70
  6. Step 6: Final answer
    x = 5,920.28

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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.