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Finding the Fourth Proportional to 12,107.88, 18,167.04 and 6,268.56

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Solution

The fourth proportional to 12,107.88, 18,167.04 and 6,268.56 is: 9,405.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.88 : 18,167.04 = 6,268.56 : x
  2. Step 2: Convert to fraction form
    12,107.88/18,167.04 = 6,268.56/x
  3. Step 3: Cross multiply
    12,107.88x = 18,167.04 × 6,268.56
  4. Step 4: Simplify right side
    12,107.88x = 113,881,180.26
  5. Step 5: Solve for x
    x = 113,881,180.26/12,107.88
  6. Step 6: Final answer
    x = 9,405.54

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1.5x scale

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.