Home / 18,418.24-27,610.20-7,322.80

Finding the Fourth Proportional to 18,418.24, 27,610.20 and 7,322.80

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Solution

The fourth proportional to 18,418.24, 27,610.20 and 7,322.80 is: 10,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.24 : 27,610.20 = 7,322.80 : x
  2. Step 2: Convert to fraction form
    18,418.24/27,610.20 = 7,322.80/x
  3. Step 3: Cross multiply
    18,418.24x = 27,610.20 × 7,322.80
  4. Step 4: Simplify right side
    18,418.24x = 202,183,972.56
  5. Step 5: Solve for x
    x = 202,183,972.56/18,418.24
  6. Step 6: Final answer
    x = 10,977.38

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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.