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Finding the Fourth Proportional to 7,716.54, 11,574.73 and 1,873.15

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Solution

The fourth proportional to 7,716.54, 11,574.73 and 1,873.15 is: 2,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.54 : 11,574.73 = 1,873.15 : x
  2. Step 2: Convert to fraction form
    7,716.54/11,574.73 = 1,873.15/x
  3. Step 3: Cross multiply
    7,716.54x = 11,574.73 × 1,873.15
  4. Step 4: Simplify right side
    7,716.54x = 21,681,215.29
  5. Step 5: Solve for x
    x = 21,681,215.29/7,716.54
  6. Step 6: Final answer
    x = 2,809.71

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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.