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Finding the Fourth Proportional to 11,150.80, 16,704.60 and 6,211.60

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Solution

The fourth proportional to 11,150.80, 16,704.60 and 6,211.60 is: 9,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.80 : 16,704.60 = 6,211.60 : x
  2. Step 2: Convert to fraction form
    11,150.80/16,704.60 = 6,211.60/x
  3. Step 3: Cross multiply
    11,150.80x = 16,704.60 × 6,211.60
  4. Step 4: Simplify right side
    11,150.80x = 103,762,293.36
  5. Step 5: Solve for x
    x = 103,762,293.36/11,150.80
  6. Step 6: Final answer
    x = 9,305.37

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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.