Home / 11,986.92-17,949.60-8,284.05

Finding the Fourth Proportional to 11,986.92, 17,949.60 and 8,284.05

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Solution

The fourth proportional to 11,986.92, 17,949.60 and 8,284.05 is: 12,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.92 : 17,949.60 = 8,284.05 : x
  2. Step 2: Convert to fraction form
    11,986.92/17,949.60 = 8,284.05/x
  3. Step 3: Cross multiply
    11,986.92x = 17,949.60 × 8,284.05
  4. Step 4: Simplify right side
    11,986.92x = 148,695,383.88
  5. Step 5: Solve for x
    x = 148,695,383.88/11,986.92
  6. Step 6: Final answer
    x = 12,404.80

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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.