Home / 11,180.82-16,783.36-6,505.90

Finding the Fourth Proportional to 11,180.82, 16,783.36 and 6,505.90

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Solution

The fourth proportional to 11,180.82, 16,783.36 and 6,505.90 is: 9,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.82 : 16,783.36 = 6,505.90 : x
  2. Step 2: Convert to fraction form
    11,180.82/16,783.36 = 6,505.90/x
  3. Step 3: Cross multiply
    11,180.82x = 16,783.36 × 6,505.90
  4. Step 4: Simplify right side
    11,180.82x = 109,190,861.82
  5. Step 5: Solve for x
    x = 109,190,861.82/11,180.82
  6. Step 6: Final answer
    x = 9,765.91

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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.