Home / 18,155.80-27,202.94-11,121.10

Finding the Fourth Proportional to 18,155.80, 27,202.94 and 11,121.10

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Solution

The fourth proportional to 18,155.80, 27,202.94 and 11,121.10 is: 16,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.80 : 27,202.94 = 11,121.10 : x
  2. Step 2: Convert to fraction form
    18,155.80/27,202.94 = 11,121.10/x
  3. Step 3: Cross multiply
    18,155.80x = 27,202.94 × 11,121.10
  4. Step 4: Simplify right side
    18,155.80x = 302,526,534.13
  5. Step 5: Solve for x
    x = 302,526,534.13/18,155.80
  6. Step 6: Final answer
    x = 16,662.81

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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.