Home / 12,203.60-18,286.20-6,351.44

Finding the Fourth Proportional to 12,203.60, 18,286.20 and 6,351.44

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Solution

The fourth proportional to 12,203.60, 18,286.20 and 6,351.44 is: 9,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.60 : 18,286.20 = 6,351.44 : x
  2. Step 2: Convert to fraction form
    12,203.60/18,286.20 = 6,351.44/x
  3. Step 3: Cross multiply
    12,203.60x = 18,286.20 × 6,351.44
  4. Step 4: Simplify right side
    12,203.60x = 116,143,702.13
  5. Step 5: Solve for x
    x = 116,143,702.13/12,203.60
  6. Step 6: Final answer
    x = 9,517.17

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1.5x scale

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.