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Finding the Fourth Proportional to 18,155.97, 27,221.22 and 9,273.99

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Solution

The fourth proportional to 18,155.97, 27,221.22 and 9,273.99 is: 13,904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.97 : 27,221.22 = 9,273.99 : x
  2. Step 2: Convert to fraction form
    18,155.97/27,221.22 = 9,273.99/x
  3. Step 3: Cross multiply
    18,155.97x = 27,221.22 × 9,273.99
  4. Step 4: Simplify right side
    18,155.97x = 252,449,322.07
  5. Step 5: Solve for x
    x = 252,449,322.07/18,155.97
  6. Step 6: Final answer
    x = 13,904.48

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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.