Home / 11,996.96-17,995.43-4,205.78

Finding the Fourth Proportional to 11,996.96, 17,995.43 and 4,205.78

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Solution

The fourth proportional to 11,996.96, 17,995.43 and 4,205.78 is: 6,308.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.96 : 17,995.43 = 4,205.78 : x
  2. Step 2: Convert to fraction form
    11,996.96/17,995.43 = 4,205.78/x
  3. Step 3: Cross multiply
    11,996.96x = 17,995.43 × 4,205.78
  4. Step 4: Simplify right side
    11,996.96x = 75,684,708.58
  5. Step 5: Solve for x
    x = 75,684,708.58/11,996.96
  6. Step 6: Final answer
    x = 6,308.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.