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Finding the Fourth Proportional to 7,935.24, 11,902.80 and 3,318.24

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Solution

The fourth proportional to 7,935.24, 11,902.80 and 3,318.24 is: 4,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.24 : 11,902.80 = 3,318.24 : x
  2. Step 2: Convert to fraction form
    7,935.24/11,902.80 = 3,318.24/x
  3. Step 3: Cross multiply
    7,935.24x = 11,902.80 × 3,318.24
  4. Step 4: Simplify right side
    7,935.24x = 39,496,347.07
  5. Step 5: Solve for x
    x = 39,496,347.07/7,935.24
  6. Step 6: Final answer
    x = 4,977.33

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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.