Home / 17,678.82-26,517.81-5,198.52

Finding the Fourth Proportional to 17,678.82, 26,517.81 and 5,198.52

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Solution

The fourth proportional to 17,678.82, 26,517.81 and 5,198.52 is: 7,797.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,678.82 : 26,517.81 = 5,198.52 : x
  2. Step 2: Convert to fraction form
    17,678.82/26,517.81 = 5,198.52/x
  3. Step 3: Cross multiply
    17,678.82x = 26,517.81 × 5,198.52
  4. Step 4: Simplify right side
    17,678.82x = 137,853,365.64
  5. Step 5: Solve for x
    x = 137,853,365.64/17,678.82
  6. Step 6: Final answer
    x = 7,797.66

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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.