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Finding the Fourth Proportional to 17,366.50, 23,965.78 and 9,408.78

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Solution

The fourth proportional to 17,366.50, 23,965.78 and 9,408.78 is: 12,984.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,366.50 : 23,965.78 = 9,408.78 : x
  2. Step 2: Convert to fraction form
    17,366.50/23,965.78 = 9,408.78/x
  3. Step 3: Cross multiply
    17,366.50x = 23,965.78 × 9,408.78
  4. Step 4: Simplify right side
    17,366.50x = 225,488,751.55
  5. Step 5: Solve for x
    x = 225,488,751.55/17,366.50
  6. Step 6: Final answer
    x = 12,984.12

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1.5x scale

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.