Home / 12,408.06-18,612.39-3,642.96

Finding the Fourth Proportional to 12,408.06, 18,612.39 and 3,642.96

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Solution

The fourth proportional to 12,408.06, 18,612.39 and 3,642.96 is: 5,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.06 : 18,612.39 = 3,642.96 : x
  2. Step 2: Convert to fraction form
    12,408.06/18,612.39 = 3,642.96/x
  3. Step 3: Cross multiply
    12,408.06x = 18,612.39 × 3,642.96
  4. Step 4: Simplify right side
    12,408.06x = 67,804,192.27
  5. Step 5: Solve for x
    x = 67,804,192.27/12,408.06
  6. Step 6: Final answer
    x = 5,464.53

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Similar ratio
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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.