Home / 20,192.78-27,863.51-11,694.76

Finding the Fourth Proportional to 20,192.78, 27,863.51 and 11,694.76

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Solution

The fourth proportional to 20,192.78, 27,863.51 and 11,694.76 is: 16,137.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.78 : 27,863.51 = 11,694.76 : x
  2. Step 2: Convert to fraction form
    20,192.78/27,863.51 = 11,694.76/x
  3. Step 3: Cross multiply
    20,192.78x = 27,863.51 × 11,694.76
  4. Step 4: Simplify right side
    20,192.78x = 325,857,073.39
  5. Step 5: Solve for x
    x = 325,857,073.39/20,192.78
  6. Step 6: Final answer
    x = 16,137.31

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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.