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Finding the Fourth Proportional to 17,399.25, 26,100.45 and 4,919.40

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Solution

The fourth proportional to 17,399.25, 26,100.45 and 4,919.40 is: 7,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,399.25 : 26,100.45 = 4,919.40 : x
  2. Step 2: Convert to fraction form
    17,399.25/26,100.45 = 4,919.40/x
  3. Step 3: Cross multiply
    17,399.25x = 26,100.45 × 4,919.40
  4. Step 4: Simplify right side
    17,399.25x = 128,398,553.73
  5. Step 5: Solve for x
    x = 128,398,553.73/17,399.25
  6. Step 6: Final answer
    x = 7,379.55

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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.