Home / 12,234.78-18,354.60-4,442.58

Finding the Fourth Proportional to 12,234.78, 18,354.60 and 4,442.58

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Solution

The fourth proportional to 12,234.78, 18,354.60 and 4,442.58 is: 6,664.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,234.78 : 18,354.60 = 4,442.58 : x
  2. Step 2: Convert to fraction form
    12,234.78/18,354.60 = 4,442.58/x
  3. Step 3: Cross multiply
    12,234.78x = 18,354.60 × 4,442.58
  4. Step 4: Simplify right side
    12,234.78x = 81,541,778.87
  5. Step 5: Solve for x
    x = 81,541,778.87/12,234.78
  6. Step 6: Final answer
    x = 6,664.75

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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.