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Finding the Fourth Proportional to 17,081.76, 25,713.22 and 12,185.28

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Solution

The fourth proportional to 17,081.76, 25,713.22 and 12,185.28 is: 18,342.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,081.76 : 25,713.22 = 12,185.28 : x
  2. Step 2: Convert to fraction form
    17,081.76/25,713.22 = 12,185.28/x
  3. Step 3: Cross multiply
    17,081.76x = 25,713.22 × 12,185.28
  4. Step 4: Simplify right side
    17,081.76x = 313,322,785.40
  5. Step 5: Solve for x
    x = 313,322,785.40/17,081.76
  6. Step 6: Final answer
    x = 18,342.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.