Home / 12,704.20-17,540.03-8,168.93

Finding the Fourth Proportional to 12,704.20, 17,540.03 and 8,168.93

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Solution

The fourth proportional to 12,704.20, 17,540.03 and 8,168.93 is: 11,278.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.20 : 17,540.03 = 8,168.93 : x
  2. Step 2: Convert to fraction form
    12,704.20/17,540.03 = 8,168.93/x
  3. Step 3: Cross multiply
    12,704.20x = 17,540.03 × 8,168.93
  4. Step 4: Simplify right side
    12,704.20x = 143,283,180.48
  5. Step 5: Solve for x
    x = 143,283,180.48/12,704.20
  6. Step 6: Final answer
    x = 11,278.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.