Home / 8,418.36-12,636.77-3,491.46

Finding the Fourth Proportional to 8,418.36, 12,636.77 and 3,491.46

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Solution

The fourth proportional to 8,418.36, 12,636.77 and 3,491.46 is: 5,241.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.36 : 12,636.77 = 3,491.46 : x
  2. Step 2: Convert to fraction form
    8,418.36/12,636.77 = 3,491.46/x
  3. Step 3: Cross multiply
    8,418.36x = 12,636.77 × 3,491.46
  4. Step 4: Simplify right side
    8,418.36x = 44,120,759.53
  5. Step 5: Solve for x
    x = 44,120,759.53/8,418.36
  6. Step 6: Final answer
    x = 5,241.02

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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.