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Finding the Fourth Proportional to 11,615.20, 16,029.15 and 6,310.12

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Solution

The fourth proportional to 11,615.20, 16,029.15 and 6,310.12 is: 8,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.20 : 16,029.15 = 6,310.12 : x
  2. Step 2: Convert to fraction form
    11,615.20/16,029.15 = 6,310.12/x
  3. Step 3: Cross multiply
    11,615.20x = 16,029.15 × 6,310.12
  4. Step 4: Simplify right side
    11,615.20x = 101,145,860.00
  5. Step 5: Solve for x
    x = 101,145,860.00/11,615.20
  6. Step 6: Final answer
    x = 8,708.06

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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.