Home / 19,747.20-27,251.46-11,790.12

Finding the Fourth Proportional to 19,747.20, 27,251.46 and 11,790.12

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Solution

The fourth proportional to 19,747.20, 27,251.46 and 11,790.12 is: 16,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,747.20 : 27,251.46 = 11,790.12 : x
  2. Step 2: Convert to fraction form
    19,747.20/27,251.46 = 11,790.12/x
  3. Step 3: Cross multiply
    19,747.20x = 27,251.46 × 11,790.12
  4. Step 4: Simplify right side
    19,747.20x = 321,297,983.58
  5. Step 5: Solve for x
    x = 321,297,983.58/19,747.20
  6. Step 6: Final answer
    x = 16,270.56

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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.