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Finding the Fourth Proportional to 17,965.64, 26,951.48 and 8,104.68

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Solution

The fourth proportional to 17,965.64, 26,951.48 and 8,104.68 is: 12,158.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,965.64 : 26,951.48 = 8,104.68 : x
  2. Step 2: Convert to fraction form
    17,965.64/26,951.48 = 8,104.68/x
  3. Step 3: Cross multiply
    17,965.64x = 26,951.48 × 8,104.68
  4. Step 4: Simplify right side
    17,965.64x = 218,433,120.93
  5. Step 5: Solve for x
    x = 218,433,120.93/17,965.64
  6. Step 6: Final answer
    x = 12,158.38

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1.5x scale

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.