Home / 12,408.15-18,613.23-3,523.56

Finding the Fourth Proportional to 12,408.15, 18,613.23 and 3,523.56

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Solution

The fourth proportional to 12,408.15, 18,613.23 and 3,523.56 is: 5,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.15 : 18,613.23 = 3,523.56 : x
  2. Step 2: Convert to fraction form
    12,408.15/18,613.23 = 3,523.56/x
  3. Step 3: Cross multiply
    12,408.15x = 18,613.23 × 3,523.56
  4. Step 4: Simplify right side
    12,408.15x = 65,584,832.70
  5. Step 5: Solve for x
    x = 65,584,832.70/12,408.15
  6. Step 6: Final answer
    x = 5,285.63

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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.