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Finding the Fourth Proportional to 11,190.60, 16,796.70 and 6,816.60

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Solution

The fourth proportional to 11,190.60, 16,796.70 and 6,816.60 is: 10,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.60 : 16,796.70 = 6,816.60 : x
  2. Step 2: Convert to fraction form
    11,190.60/16,796.70 = 6,816.60/x
  3. Step 3: Cross multiply
    11,190.60x = 16,796.70 × 6,816.60
  4. Step 4: Simplify right side
    11,190.60x = 114,496,385.22
  5. Step 5: Solve for x
    x = 114,496,385.22/11,190.60
  6. Step 6: Final answer
    x = 10,231.48

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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.