Home / 17,999.39-27,003.33-8,138.64

Finding the Fourth Proportional to 17,999.39, 27,003.33 and 8,138.64

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Solution

The fourth proportional to 17,999.39, 27,003.33 and 8,138.64 is: 12,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,999.39 : 27,003.33 = 8,138.64 : x
  2. Step 2: Convert to fraction form
    17,999.39/27,003.33 = 8,138.64/x
  3. Step 3: Cross multiply
    17,999.39x = 27,003.33 × 8,138.64
  4. Step 4: Simplify right side
    17,999.39x = 219,770,381.67
  5. Step 5: Solve for x
    x = 219,770,381.67/17,999.39
  6. Step 6: Final answer
    x = 12,209.88

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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.