Home / 11,761.67-16,231.39-6,456.58

Finding the Fourth Proportional to 11,761.67, 16,231.39 and 6,456.58

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Solution

The fourth proportional to 11,761.67, 16,231.39 and 6,456.58 is: 8,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.67 : 16,231.39 = 6,456.58 : x
  2. Step 2: Convert to fraction form
    11,761.67/16,231.39 = 6,456.58/x
  3. Step 3: Cross multiply
    11,761.67x = 16,231.39 × 6,456.58
  4. Step 4: Simplify right side
    11,761.67x = 104,799,211.33
  5. Step 5: Solve for x
    x = 104,799,211.33/11,761.67
  6. Step 6: Final answer
    x = 8,910.23

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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.