Home / 13,306.69-19,960.23-3,947.66

Finding the Fourth Proportional to 13,306.69, 19,960.23 and 3,947.66

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Solution

The fourth proportional to 13,306.69, 19,960.23 and 3,947.66 is: 5,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.69 : 19,960.23 = 3,947.66 : x
  2. Step 2: Convert to fraction form
    13,306.69/19,960.23 = 3,947.66/x
  3. Step 3: Cross multiply
    13,306.69x = 19,960.23 × 3,947.66
  4. Step 4: Simplify right side
    13,306.69x = 78,796,201.56
  5. Step 5: Solve for x
    x = 78,796,201.56/13,306.69
  6. Step 6: Final answer
    x = 5,921.55

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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.