Home / 12,351.26-17,040.16-8,104.69

Finding the Fourth Proportional to 12,351.26, 17,040.16 and 8,104.69

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Solution

The fourth proportional to 12,351.26, 17,040.16 and 8,104.69 is: 11,181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.26 : 17,040.16 = 8,104.69 : x
  2. Step 2: Convert to fraction form
    12,351.26/17,040.16 = 8,104.69/x
  3. Step 3: Cross multiply
    12,351.26x = 17,040.16 × 8,104.69
  4. Step 4: Simplify right side
    12,351.26x = 138,105,245.78
  5. Step 5: Solve for x
    x = 138,105,245.78/12,351.26
  6. Step 6: Final answer
    x = 11,181.47

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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.