Home / 11,784.20-16,233.78-8,241.80

Finding the Fourth Proportional to 11,784.20, 16,233.78 and 8,241.80

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Solution

The fourth proportional to 11,784.20, 16,233.78 and 8,241.80 is: 11,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.20 : 16,233.78 = 8,241.80 : x
  2. Step 2: Convert to fraction form
    11,784.20/16,233.78 = 8,241.80/x
  3. Step 3: Cross multiply
    11,784.20x = 16,233.78 × 8,241.80
  4. Step 4: Simplify right side
    11,784.20x = 133,795,568.00
  5. Step 5: Solve for x
    x = 133,795,568.00/11,784.20
  6. Step 6: Final answer
    x = 11,353.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.