Home / 11,687.54-17,531.45-3,896.35

Finding the Fourth Proportional to 11,687.54, 17,531.45 and 3,896.35

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Solution

The fourth proportional to 11,687.54, 17,531.45 and 3,896.35 is: 5,844.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.54 : 17,531.45 = 3,896.35 : x
  2. Step 2: Convert to fraction form
    11,687.54/17,531.45 = 3,896.35/x
  3. Step 3: Cross multiply
    11,687.54x = 17,531.45 × 3,896.35
  4. Step 4: Simplify right side
    11,687.54x = 68,308,631.12
  5. Step 5: Solve for x
    x = 68,308,631.12/11,687.54
  6. Step 6: Final answer
    x = 5,844.57

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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.