Home / 8,231.22-12,408.32-7,530.64

Finding the Fourth Proportional to 8,231.22, 12,408.32 and 7,530.64

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Solution

The fourth proportional to 8,231.22, 12,408.32 and 7,530.64 is: 11,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.22 : 12,408.32 = 7,530.64 : x
  2. Step 2: Convert to fraction form
    8,231.22/12,408.32 = 7,530.64/x
  3. Step 3: Cross multiply
    8,231.22x = 12,408.32 × 7,530.64
  4. Step 4: Simplify right side
    8,231.22x = 93,442,578.73
  5. Step 5: Solve for x
    x = 93,442,578.73/8,231.22
  6. Step 6: Final answer
    x = 11,352.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.