Home / 13,979.67-19,296.06-8,318.43

Finding the Fourth Proportional to 13,979.67, 19,296.06 and 8,318.43

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Solution

The fourth proportional to 13,979.67, 19,296.06 and 8,318.43 is: 11,481.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.67 : 19,296.06 = 8,318.43 : x
  2. Step 2: Convert to fraction form
    13,979.67/19,296.06 = 8,318.43/x
  3. Step 3: Cross multiply
    13,979.67x = 19,296.06 × 8,318.43
  4. Step 4: Simplify right side
    13,979.67x = 160,512,924.39
  5. Step 5: Solve for x
    x = 160,512,924.39/13,979.67
  6. Step 6: Final answer
    x = 11,481.88

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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.