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Finding the Fourth Proportional to 12,441, 18,662.58 and 3,207

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Solution

The fourth proportional to 12,441, 18,662.58 and 3,207 is: 4,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441 : 18,662.58 = 3,207 : x
  2. Step 2: Convert to fraction form
    12,441/18,662.58 = 3,207/x
  3. Step 3: Cross multiply
    12,441x = 18,662.58 × 3,207
  4. Step 4: Simplify right side
    12,441x = 59,850,894.06
  5. Step 5: Solve for x
    x = 59,850,894.06/12,441
  6. Step 6: Final answer
    x = 4,810.78

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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.