Home / 18,571.44-27,819.97-11,171.77

Finding the Fourth Proportional to 18,571.44, 27,819.97 and 11,171.77

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Solution

The fourth proportional to 18,571.44, 27,819.97 and 11,171.77 is: 16,735.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.44 : 27,819.97 = 11,171.77 : x
  2. Step 2: Convert to fraction form
    18,571.44/27,819.97 = 11,171.77/x
  3. Step 3: Cross multiply
    18,571.44x = 27,819.97 × 11,171.77
  4. Step 4: Simplify right side
    18,571.44x = 310,798,306.25
  5. Step 5: Solve for x
    x = 310,798,306.25/18,571.44
  6. Step 6: Final answer
    x = 16,735.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.