Home / 8,512.18-12,768.28-2,272.22

Finding the Fourth Proportional to 8,512.18, 12,768.28 and 2,272.22

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Solution

The fourth proportional to 8,512.18, 12,768.28 and 2,272.22 is: 3,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.18 : 12,768.28 = 2,272.22 : x
  2. Step 2: Convert to fraction form
    8,512.18/12,768.28 = 2,272.22/x
  3. Step 3: Cross multiply
    8,512.18x = 12,768.28 × 2,272.22
  4. Step 4: Simplify right side
    8,512.18x = 29,012,297.90
  5. Step 5: Solve for x
    x = 29,012,297.90/8,512.18
  6. Step 6: Final answer
    x = 3,408.33

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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.