Home / 10,231.31-14,121.74-6,255.78

Finding the Fourth Proportional to 10,231.31, 14,121.74 and 6,255.78

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Solution

The fourth proportional to 10,231.31, 14,121.74 and 6,255.78 is: 8,634.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231.31 : 14,121.74 = 6,255.78 : x
  2. Step 2: Convert to fraction form
    10,231.31/14,121.74 = 6,255.78/x
  3. Step 3: Cross multiply
    10,231.31x = 14,121.74 × 6,255.78
  4. Step 4: Simplify right side
    10,231.31x = 88,342,540.77
  5. Step 5: Solve for x
    x = 88,342,540.77/10,231.31
  6. Step 6: Final answer
    x = 8,634.53

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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.