Home / 13,442.62-20,146.41-6,863.26

Finding the Fourth Proportional to 13,442.62, 20,146.41 and 6,863.26

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Solution

The fourth proportional to 13,442.62, 20,146.41 and 6,863.26 is: 10,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.62 : 20,146.41 = 6,863.26 : x
  2. Step 2: Convert to fraction form
    13,442.62/20,146.41 = 6,863.26/x
  3. Step 3: Cross multiply
    13,442.62x = 20,146.41 × 6,863.26
  4. Step 4: Simplify right side
    13,442.62x = 138,270,049.90
  5. Step 5: Solve for x
    x = 138,270,049.90/13,442.62
  6. Step 6: Final answer
    x = 10,285.94

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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.