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Finding the Fourth Proportional to 12,637.11, 18,958.09 and 4,845.32

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Solution

The fourth proportional to 12,637.11, 18,958.09 and 4,845.32 is: 7,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.11 : 18,958.09 = 4,845.32 : x
  2. Step 2: Convert to fraction form
    12,637.11/18,958.09 = 4,845.32/x
  3. Step 3: Cross multiply
    12,637.11x = 18,958.09 × 4,845.32
  4. Step 4: Simplify right side
    12,637.11x = 91,857,917.85
  5. Step 5: Solve for x
    x = 91,857,917.85/12,637.11
  6. Step 6: Final answer
    x = 7,268.90

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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.