Home / 13,912.97-19,201.86-8,609.49

Finding the Fourth Proportional to 13,912.97, 19,201.86 and 8,609.49

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Solution

The fourth proportional to 13,912.97, 19,201.86 and 8,609.49 is: 11,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.97 : 19,201.86 = 8,609.49 : x
  2. Step 2: Convert to fraction form
    13,912.97/19,201.86 = 8,609.49/x
  3. Step 3: Cross multiply
    13,912.97x = 19,201.86 × 8,609.49
  4. Step 4: Simplify right side
    13,912.97x = 165,318,221.65
  5. Step 5: Solve for x
    x = 165,318,221.65/13,912.97
  6. Step 6: Final answer
    x = 11,882.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.