Home / 11,786.74-16,272.86-8,200.36

Finding the Fourth Proportional to 11,786.74, 16,272.86 and 8,200.36

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Solution

The fourth proportional to 11,786.74, 16,272.86 and 8,200.36 is: 11,321.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.74 : 16,272.86 = 8,200.36 : x
  2. Step 2: Convert to fraction form
    11,786.74/16,272.86 = 8,200.36/x
  3. Step 3: Cross multiply
    11,786.74x = 16,272.86 × 8,200.36
  4. Step 4: Simplify right side
    11,786.74x = 133,443,310.23
  5. Step 5: Solve for x
    x = 133,443,310.23/11,786.74
  6. Step 6: Final answer
    x = 11,321.48

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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.