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Finding the Fourth Proportional to 11,021.75, 16,532.63 and 2,813.75

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Solution

The fourth proportional to 11,021.75, 16,532.63 and 2,813.75 is: 4,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.75 : 16,532.63 = 2,813.75 : x
  2. Step 2: Convert to fraction form
    11,021.75/16,532.63 = 2,813.75/x
  3. Step 3: Cross multiply
    11,021.75x = 16,532.63 × 2,813.75
  4. Step 4: Simplify right side
    11,021.75x = 46,518,687.66
  5. Step 5: Solve for x
    x = 46,518,687.66/11,021.75
  6. Step 6: Final answer
    x = 4,220.63

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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.