Home / 11,786.98-16,265.66-6,481.78

Finding the Fourth Proportional to 11,786.98, 16,265.66 and 6,481.78

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Solution

The fourth proportional to 11,786.98, 16,265.66 and 6,481.78 is: 8,944.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.98 : 16,265.66 = 6,481.78 : x
  2. Step 2: Convert to fraction form
    11,786.98/16,265.66 = 6,481.78/x
  3. Step 3: Cross multiply
    11,786.98x = 16,265.66 × 6,481.78
  4. Step 4: Simplify right side
    11,786.98x = 105,430,429.67
  5. Step 5: Solve for x
    x = 105,430,429.67/11,786.98
  6. Step 6: Final answer
    x = 8,944.65

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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.