Home / 18,171.40-27,218.22-11,224.84

Finding the Fourth Proportional to 18,171.40, 27,218.22 and 11,224.84

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Solution

The fourth proportional to 18,171.40, 27,218.22 and 11,224.84 is: 16,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.40 : 27,218.22 = 11,224.84 : x
  2. Step 2: Convert to fraction form
    18,171.40/27,218.22 = 11,224.84/x
  3. Step 3: Cross multiply
    18,171.40x = 27,218.22 × 11,224.84
  4. Step 4: Simplify right side
    18,171.40x = 305,520,164.58
  5. Step 5: Solve for x
    x = 305,520,164.58/18,171.40
  6. Step 6: Final answer
    x = 16,813.24

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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.