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Finding the Fourth Proportional to 8,268.68, 12,393.68 and 3,876.93

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Solution

The fourth proportional to 8,268.68, 12,393.68 and 3,876.93 is: 5,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.68 : 12,393.68 = 3,876.93 : x
  2. Step 2: Convert to fraction form
    8,268.68/12,393.68 = 3,876.93/x
  3. Step 3: Cross multiply
    8,268.68x = 12,393.68 × 3,876.93
  4. Step 4: Simplify right side
    8,268.68x = 48,049,410.42
  5. Step 5: Solve for x
    x = 48,049,410.42/8,268.68
  6. Step 6: Final answer
    x = 5,811.01

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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.