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Finding the Fourth Proportional to 11,247.30, 16,866.90 and 5,698.80

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Solution

The fourth proportional to 11,247.30, 16,866.90 and 5,698.80 is: 8,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.30 : 16,866.90 = 5,698.80 : x
  2. Step 2: Convert to fraction form
    11,247.30/16,866.90 = 5,698.80/x
  3. Step 3: Cross multiply
    11,247.30x = 16,866.90 × 5,698.80
  4. Step 4: Simplify right side
    11,247.30x = 96,121,089.72
  5. Step 5: Solve for x
    x = 96,121,089.72/11,247.30
  6. Step 6: Final answer
    x = 8,546.15

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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.