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Finding the Fourth Proportional to 8,322.28, 11,485.44 and 4,786.63

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Solution

The fourth proportional to 8,322.28, 11,485.44 and 4,786.63 is: 6,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.28 : 11,485.44 = 4,786.63 : x
  2. Step 2: Convert to fraction form
    8,322.28/11,485.44 = 4,786.63/x
  3. Step 3: Cross multiply
    8,322.28x = 11,485.44 × 4,786.63
  4. Step 4: Simplify right side
    8,322.28x = 54,976,551.67
  5. Step 5: Solve for x
    x = 54,976,551.67/8,322.28
  6. Step 6: Final answer
    x = 6,605.95

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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.