Home / 8,138.97-12,209.23-2,216.26

Finding the Fourth Proportional to 8,138.97, 12,209.23 and 2,216.26

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Solution

The fourth proportional to 8,138.97, 12,209.23 and 2,216.26 is: 3,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.97 : 12,209.23 = 2,216.26 : x
  2. Step 2: Convert to fraction form
    8,138.97/12,209.23 = 2,216.26/x
  3. Step 3: Cross multiply
    8,138.97x = 12,209.23 × 2,216.26
  4. Step 4: Simplify right side
    8,138.97x = 27,058,816.28
  5. Step 5: Solve for x
    x = 27,058,816.28/8,138.97
  6. Step 6: Final answer
    x = 3,324.60

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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.