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Finding the Fourth Proportional to 7,994.87, 11,032.97 and 4,639.68

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Solution

The fourth proportional to 7,994.87, 11,032.97 and 4,639.68 is: 6,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.87 : 11,032.97 = 4,639.68 : x
  2. Step 2: Convert to fraction form
    7,994.87/11,032.97 = 4,639.68/x
  3. Step 3: Cross multiply
    7,994.87x = 11,032.97 × 4,639.68
  4. Step 4: Simplify right side
    7,994.87x = 51,189,427.05
  5. Step 5: Solve for x
    x = 51,189,427.05/7,994.87
  6. Step 6: Final answer
    x = 6,402.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.