Home / 11,321.64-16,982.46-3,531.06

Finding the Fourth Proportional to 11,321.64, 16,982.46 and 3,531.06

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Solution

The fourth proportional to 11,321.64, 16,982.46 and 3,531.06 is: 5,296.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.64 : 16,982.46 = 3,531.06 : x
  2. Step 2: Convert to fraction form
    11,321.64/16,982.46 = 3,531.06/x
  3. Step 3: Cross multiply
    11,321.64x = 16,982.46 × 3,531.06
  4. Step 4: Simplify right side
    11,321.64x = 59,966,085.21
  5. Step 5: Solve for x
    x = 59,966,085.21/11,321.64
  6. Step 6: Final answer
    x = 5,296.59

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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.