Home / 11,118.40-16,650.60-5,912.80

Finding the Fourth Proportional to 11,118.40, 16,650.60 and 5,912.80

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Solution

The fourth proportional to 11,118.40, 16,650.60 and 5,912.80 is: 8,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.40 : 16,650.60 = 5,912.80 : x
  2. Step 2: Convert to fraction form
    11,118.40/16,650.60 = 5,912.80/x
  3. Step 3: Cross multiply
    11,118.40x = 16,650.60 × 5,912.80
  4. Step 4: Simplify right side
    11,118.40x = 98,451,667.68
  5. Step 5: Solve for x
    x = 98,451,667.68/11,118.40
  6. Step 6: Final answer
    x = 8,854.84

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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.