Home / 12,230.41-18,336.64-3,905.64

Finding the Fourth Proportional to 12,230.41, 18,336.64 and 3,905.64

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Solution

The fourth proportional to 12,230.41, 18,336.64 and 3,905.64 is: 5,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.41 : 18,336.64 = 3,905.64 : x
  2. Step 2: Convert to fraction form
    12,230.41/18,336.64 = 3,905.64/x
  3. Step 3: Cross multiply
    12,230.41x = 18,336.64 × 3,905.64
  4. Step 4: Simplify right side
    12,230.41x = 71,616,203.44
  5. Step 5: Solve for x
    x = 71,616,203.44/12,230.41
  6. Step 6: Final answer
    x = 5,855.58

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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.