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Finding the Fourth Proportional to 17,211, 23,751.18 and 9,759

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Solution

The fourth proportional to 17,211, 23,751.18 and 9,759 is: 13,467.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,211 : 23,751.18 = 9,759 : x
  2. Step 2: Convert to fraction form
    17,211/23,751.18 = 9,759/x
  3. Step 3: Cross multiply
    17,211x = 23,751.18 × 9,759
  4. Step 4: Simplify right side
    17,211x = 231,787,765.62
  5. Step 5: Solve for x
    x = 231,787,765.62/17,211
  6. Step 6: Final answer
    x = 13,467.42

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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.