Home / 18,237.12-27,292.32-11,213.88

Finding the Fourth Proportional to 18,237.12, 27,292.32 and 11,213.88

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Solution

The fourth proportional to 18,237.12, 27,292.32 and 11,213.88 is: 16,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.12 : 27,292.32 = 11,213.88 : x
  2. Step 2: Convert to fraction form
    18,237.12/27,292.32 = 11,213.88/x
  3. Step 3: Cross multiply
    18,237.12x = 27,292.32 × 11,213.88
  4. Step 4: Simplify right side
    18,237.12x = 306,052,801.40
  5. Step 5: Solve for x
    x = 306,052,801.40/18,237.12
  6. Step 6: Final answer
    x = 16,781.86

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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.