Home / 17,979.73-26,984.05-8,119.87

Finding the Fourth Proportional to 17,979.73, 26,984.05 and 8,119.87

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Solution

The fourth proportional to 17,979.73, 26,984.05 and 8,119.87 is: 12,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979.73 : 26,984.05 = 8,119.87 : x
  2. Step 2: Convert to fraction form
    17,979.73/26,984.05 = 8,119.87/x
  3. Step 3: Cross multiply
    17,979.73x = 26,984.05 × 8,119.87
  4. Step 4: Simplify right side
    17,979.73x = 219,106,890.31
  5. Step 5: Solve for x
    x = 219,106,890.31/17,979.73
  6. Step 6: Final answer
    x = 12,186.33

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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.