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Finding the Fourth Proportional to 7,872.34, 11,808.71 and 2,607.34

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Solution

The fourth proportional to 7,872.34, 11,808.71 and 2,607.34 is: 3,911.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.34 : 11,808.71 = 2,607.34 : x
  2. Step 2: Convert to fraction form
    7,872.34/11,808.71 = 2,607.34/x
  3. Step 3: Cross multiply
    7,872.34x = 11,808.71 × 2,607.34
  4. Step 4: Simplify right side
    7,872.34x = 30,789,321.93
  5. Step 5: Solve for x
    x = 30,789,321.93/7,872.34
  6. Step 6: Final answer
    x = 3,911.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.