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Finding the Fourth Proportional to 11,290.64, 16,930.26 and 6,612.14

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Solution

The fourth proportional to 11,290.64, 16,930.26 and 6,612.14 is: 9,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.64 : 16,930.26 = 6,612.14 : x
  2. Step 2: Convert to fraction form
    11,290.64/16,930.26 = 6,612.14/x
  3. Step 3: Cross multiply
    11,290.64x = 16,930.26 × 6,612.14
  4. Step 4: Simplify right side
    11,290.64x = 111,945,249.36
  5. Step 5: Solve for x
    x = 111,945,249.36/11,290.64
  6. Step 6: Final answer
    x = 9,914.87

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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.