Home / 18,218.90-27,266.57-11,203.32

Finding the Fourth Proportional to 18,218.90, 27,266.57 and 11,203.32

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Solution

The fourth proportional to 18,218.90, 27,266.57 and 11,203.32 is: 16,766.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.90 : 27,266.57 = 11,203.32 : x
  2. Step 2: Convert to fraction form
    18,218.90/27,266.57 = 11,203.32/x
  3. Step 3: Cross multiply
    18,218.90x = 27,266.57 × 11,203.32
  4. Step 4: Simplify right side
    18,218.90x = 305,476,183.59
  5. Step 5: Solve for x
    x = 305,476,183.59/18,218.90
  6. Step 6: Final answer
    x = 16,766.99

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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.