Home / 8,115.23-12,173.30-2,272.29

Finding the Fourth Proportional to 8,115.23, 12,173.30 and 2,272.29

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Solution

The fourth proportional to 8,115.23, 12,173.30 and 2,272.29 is: 3,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.23 : 12,173.30 = 2,272.29 : x
  2. Step 2: Convert to fraction form
    8,115.23/12,173.30 = 2,272.29/x
  3. Step 3: Cross multiply
    8,115.23x = 12,173.30 × 2,272.29
  4. Step 4: Simplify right side
    8,115.23x = 27,661,256.50
  5. Step 5: Solve for x
    x = 27,661,256.50/8,115.23
  6. Step 6: Final answer
    x = 3,408.56

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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.