Home / 18,108.21-27,161.91-8,250.12

Finding the Fourth Proportional to 18,108.21, 27,161.91 and 8,250.12

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Solution

The fourth proportional to 18,108.21, 27,161.91 and 8,250.12 is: 12,375.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.21 : 27,161.91 = 8,250.12 : x
  2. Step 2: Convert to fraction form
    18,108.21/27,161.91 = 8,250.12/x
  3. Step 3: Cross multiply
    18,108.21x = 27,161.91 × 8,250.12
  4. Step 4: Simplify right side
    18,108.21x = 224,089,016.93
  5. Step 5: Solve for x
    x = 224,089,016.93/18,108.21
  6. Step 6: Final answer
    x = 12,375.00

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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.