Home / 8,512.13-12,768.81-2,272.10

Finding the Fourth Proportional to 8,512.13, 12,768.81 and 2,272.10

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Solution

The fourth proportional to 8,512.13, 12,768.81 and 2,272.10 is: 3,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.13 : 12,768.81 = 2,272.10 : x
  2. Step 2: Convert to fraction form
    8,512.13/12,768.81 = 2,272.10/x
  3. Step 3: Cross multiply
    8,512.13x = 12,768.81 × 2,272.10
  4. Step 4: Simplify right side
    8,512.13x = 29,012,013.20
  5. Step 5: Solve for x
    x = 29,012,013.20/8,512.13
  6. Step 6: Final answer
    x = 3,408.31

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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.