Home / 11,961.59-17,945.12-3,642.79

Finding the Fourth Proportional to 11,961.59, 17,945.12 and 3,642.79

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Solution

The fourth proportional to 11,961.59, 17,945.12 and 3,642.79 is: 5,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.59 : 17,945.12 = 3,642.79 : x
  2. Step 2: Convert to fraction form
    11,961.59/17,945.12 = 3,642.79/x
  3. Step 3: Cross multiply
    11,961.59x = 17,945.12 × 3,642.79
  4. Step 4: Simplify right side
    11,961.59x = 65,370,195.75
  5. Step 5: Solve for x
    x = 65,370,195.75/11,961.59
  6. Step 6: Final answer
    x = 5,465.01

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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.