Home / 15,906.14-21,964.38-9,947.96

Finding the Fourth Proportional to 15,906.14, 21,964.38 and 9,947.96

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Solution

The fourth proportional to 15,906.14, 21,964.38 and 9,947.96 is: 13,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,906.14 : 21,964.38 = 9,947.96 : x
  2. Step 2: Convert to fraction form
    15,906.14/21,964.38 = 9,947.96/x
  3. Step 3: Cross multiply
    15,906.14x = 21,964.38 × 9,947.96
  4. Step 4: Simplify right side
    15,906.14x = 218,500,773.66
  5. Step 5: Solve for x
    x = 218,500,773.66/15,906.14
  6. Step 6: Final answer
    x = 13,736.88

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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.