Home / 8,408.37-12,613.12-2,786.02

Finding the Fourth Proportional to 8,408.37, 12,613.12 and 2,786.02

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Solution

The fourth proportional to 8,408.37, 12,613.12 and 2,786.02 is: 4,179.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.37 : 12,613.12 = 2,786.02 : x
  2. Step 2: Convert to fraction form
    8,408.37/12,613.12 = 2,786.02/x
  3. Step 3: Cross multiply
    8,408.37x = 12,613.12 × 2,786.02
  4. Step 4: Simplify right side
    8,408.37x = 35,140,427.13
  5. Step 5: Solve for x
    x = 35,140,427.13/8,408.37
  6. Step 6: Final answer
    x = 4,179.22

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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.