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Finding the Fourth Proportional to 8,365.49, 12,540.79 and 3,175.01

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Solution

The fourth proportional to 8,365.49, 12,540.79 and 3,175.01 is: 4,759.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.49 : 12,540.79 = 3,175.01 : x
  2. Step 2: Convert to fraction form
    8,365.49/12,540.79 = 3,175.01/x
  3. Step 3: Cross multiply
    8,365.49x = 12,540.79 × 3,175.01
  4. Step 4: Simplify right side
    8,365.49x = 39,817,121.95
  5. Step 5: Solve for x
    x = 39,817,121.95/8,365.49
  6. Step 6: Final answer
    x = 4,759.69

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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.