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Finding the Fourth Proportional to 14,650.56, 21,940.20 and 6,861.60

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Solution

The fourth proportional to 14,650.56, 21,940.20 and 6,861.60 is: 10,275.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,650.56 : 21,940.20 = 6,861.60 : x
  2. Step 2: Convert to fraction form
    14,650.56/21,940.20 = 6,861.60/x
  3. Step 3: Cross multiply
    14,650.56x = 21,940.20 × 6,861.60
  4. Step 4: Simplify right side
    14,650.56x = 150,544,876.32
  5. Step 5: Solve for x
    x = 150,544,876.32/14,650.56
  6. Step 6: Final answer
    x = 10,275.71

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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.