Home / 11,961.54-17,945.01-3,642.30

Finding the Fourth Proportional to 11,961.54, 17,945.01 and 3,642.30

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Solution

The fourth proportional to 11,961.54, 17,945.01 and 3,642.30 is: 5,464.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.54 : 17,945.01 = 3,642.30 : x
  2. Step 2: Convert to fraction form
    11,961.54/17,945.01 = 3,642.30/x
  3. Step 3: Cross multiply
    11,961.54x = 17,945.01 × 3,642.30
  4. Step 4: Simplify right side
    11,961.54x = 65,361,109.92
  5. Step 5: Solve for x
    x = 65,361,109.92/11,961.54
  6. Step 6: Final answer
    x = 5,464.27

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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.