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Finding the Fourth Proportional to 8,676.90, 13,015.20 and 2,436.84

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Solution

The fourth proportional to 8,676.90, 13,015.20 and 2,436.84 is: 3,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.90 : 13,015.20 = 2,436.84 : x
  2. Step 2: Convert to fraction form
    8,676.90/13,015.20 = 2,436.84/x
  3. Step 3: Cross multiply
    8,676.90x = 13,015.20 × 2,436.84
  4. Step 4: Simplify right side
    8,676.90x = 31,715,959.97
  5. Step 5: Solve for x
    x = 31,715,959.97/8,676.90
  6. Step 6: Final answer
    x = 3,655.22

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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.