Home / 12,442.64-18,665.98-3,678.44

Finding the Fourth Proportional to 12,442.64, 18,665.98 and 3,678.44

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Solution

The fourth proportional to 12,442.64, 18,665.98 and 3,678.44 is: 5,518.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.64 : 18,665.98 = 3,678.44 : x
  2. Step 2: Convert to fraction form
    12,442.64/18,665.98 = 3,678.44/x
  3. Step 3: Cross multiply
    12,442.64x = 18,665.98 × 3,678.44
  4. Step 4: Simplify right side
    12,442.64x = 68,661,584.95
  5. Step 5: Solve for x
    x = 68,661,584.95/12,442.64
  6. Step 6: Final answer
    x = 5,518.25

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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.