Home / 18,163.49-27,190.92-11,121.35

Finding the Fourth Proportional to 18,163.49, 27,190.92 and 11,121.35

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Solution

The fourth proportional to 18,163.49, 27,190.92 and 11,121.35 is: 16,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.49 : 27,190.92 = 11,121.35 : x
  2. Step 2: Convert to fraction form
    18,163.49/27,190.92 = 11,121.35/x
  3. Step 3: Cross multiply
    18,163.49x = 27,190.92 × 11,121.35
  4. Step 4: Simplify right side
    18,163.49x = 302,399,738.14
  5. Step 5: Solve for x
    x = 302,399,738.14/18,163.49
  6. Step 6: Final answer
    x = 16,648.77

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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.