Home / 12,272.11-18,408.77-3,508.32

Finding the Fourth Proportional to 12,272.11, 18,408.77 and 3,508.32

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Solution

The fourth proportional to 12,272.11, 18,408.77 and 3,508.32 is: 5,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.11 : 18,408.77 = 3,508.32 : x
  2. Step 2: Convert to fraction form
    12,272.11/18,408.77 = 3,508.32/x
  3. Step 3: Cross multiply
    12,272.11x = 18,408.77 × 3,508.32
  4. Step 4: Simplify right side
    12,272.11x = 64,583,772.69
  5. Step 5: Solve for x
    x = 64,583,772.69/12,272.11
  6. Step 6: Final answer
    x = 5,262.65

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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.