Home / 17,138.36-25,722.12-12,220.04

Finding the Fourth Proportional to 17,138.36, 25,722.12 and 12,220.04

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Solution

The fourth proportional to 17,138.36, 25,722.12 and 12,220.04 is: 18,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,138.36 : 25,722.12 = 12,220.04 : x
  2. Step 2: Convert to fraction form
    17,138.36/25,722.12 = 12,220.04/x
  3. Step 3: Cross multiply
    17,138.36x = 25,722.12 × 12,220.04
  4. Step 4: Simplify right side
    17,138.36x = 314,325,335.28
  5. Step 5: Solve for x
    x = 314,325,335.28/17,138.36
  6. Step 6: Final answer
    x = 18,340.46

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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.