Home / 12,207.25-18,310.83-3,442.15

Finding the Fourth Proportional to 12,207.25, 18,310.83 and 3,442.15

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Solution

The fourth proportional to 12,207.25, 18,310.83 and 3,442.15 is: 5,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.25 : 18,310.83 = 3,442.15 : x
  2. Step 2: Convert to fraction form
    12,207.25/18,310.83 = 3,442.15/x
  3. Step 3: Cross multiply
    12,207.25x = 18,310.83 × 3,442.15
  4. Step 4: Simplify right side
    12,207.25x = 63,028,623.48
  5. Step 5: Solve for x
    x = 63,028,623.48/12,207.25
  6. Step 6: Final answer
    x = 5,163.21

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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.