Home / 21,198.38-29,252.88-11,767.56

Finding the Fourth Proportional to 21,198.38, 29,252.88 and 11,767.56

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Solution

The fourth proportional to 21,198.38, 29,252.88 and 11,767.56 is: 16,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.38 : 29,252.88 = 11,767.56 : x
  2. Step 2: Convert to fraction form
    21,198.38/29,252.88 = 11,767.56/x
  3. Step 3: Cross multiply
    21,198.38x = 29,252.88 × 11,767.56
  4. Step 4: Simplify right side
    21,198.38x = 344,235,020.57
  5. Step 5: Solve for x
    x = 344,235,020.57/21,198.38
  6. Step 6: Final answer
    x = 16,238.74

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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.