Home / 18,821.56-25,974.11-11,268.22

Finding the Fourth Proportional to 18,821.56, 25,974.11 and 11,268.22

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Solution

The fourth proportional to 18,821.56, 25,974.11 and 11,268.22 is: 15,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.56 : 25,974.11 = 11,268.22 : x
  2. Step 2: Convert to fraction form
    18,821.56/25,974.11 = 11,268.22/x
  3. Step 3: Cross multiply
    18,821.56x = 25,974.11 × 11,268.22
  4. Step 4: Simplify right side
    18,821.56x = 292,681,949.02
  5. Step 5: Solve for x
    x = 292,681,949.02/18,821.56
  6. Step 6: Final answer
    x = 15,550.36

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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.