Home / 11,743.80-17,617.14-5,171.64

Finding the Fourth Proportional to 11,743.80, 17,617.14 and 5,171.64

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Solution

The fourth proportional to 11,743.80, 17,617.14 and 5,171.64 is: 7,758.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.80 : 17,617.14 = 5,171.64 : x
  2. Step 2: Convert to fraction form
    11,743.80/17,617.14 = 5,171.64/x
  3. Step 3: Cross multiply
    11,743.80x = 17,617.14 × 5,171.64
  4. Step 4: Simplify right side
    11,743.80x = 91,109,505.91
  5. Step 5: Solve for x
    x = 91,109,505.91/11,743.80
  6. Step 6: Final answer
    x = 7,758.09

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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.