Home / 8,408.05-12,619.86-4,250.98

Finding the Fourth Proportional to 8,408.05, 12,619.86 and 4,250.98

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Solution

The fourth proportional to 8,408.05, 12,619.86 and 4,250.98 is: 6,380.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.05 : 12,619.86 = 4,250.98 : x
  2. Step 2: Convert to fraction form
    8,408.05/12,619.86 = 4,250.98/x
  3. Step 3: Cross multiply
    8,408.05x = 12,619.86 × 4,250.98
  4. Step 4: Simplify right side
    8,408.05x = 53,646,772.46
  5. Step 5: Solve for x
    x = 53,646,772.46/8,408.05
  6. Step 6: Final answer
    x = 6,380.41

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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.