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Finding the Fourth Proportional to 8,817.84, 13,227.99 and 2,578.30

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Solution

The fourth proportional to 8,817.84, 13,227.99 and 2,578.30 is: 3,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.84 : 13,227.99 = 2,578.30 : x
  2. Step 2: Convert to fraction form
    8,817.84/13,227.99 = 2,578.30/x
  3. Step 3: Cross multiply
    8,817.84x = 13,227.99 × 2,578.30
  4. Step 4: Simplify right side
    8,817.84x = 34,105,726.62
  5. Step 5: Solve for x
    x = 34,105,726.62/8,817.84
  6. Step 6: Final answer
    x = 3,867.81

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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.