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Finding the Fourth Proportional to 20,195.64, 27,863.64 and 11,694.96

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Solution

The fourth proportional to 20,195.64, 27,863.64 and 11,694.96 is: 16,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.64 : 27,863.64 = 11,694.96 : x
  2. Step 2: Convert to fraction form
    20,195.64/27,863.64 = 11,694.96/x
  3. Step 3: Cross multiply
    20,195.64x = 27,863.64 × 11,694.96
  4. Step 4: Simplify right side
    20,195.64x = 325,864,155.25
  5. Step 5: Solve for x
    x = 325,864,155.25/20,195.64
  6. Step 6: Final answer
    x = 16,135.37

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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.