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Finding the Fourth Proportional to 14,855.57, 20,500.69 and 8,049.60

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Solution

The fourth proportional to 14,855.57, 20,500.69 and 8,049.60 is: 11,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.57 : 20,500.69 = 8,049.60 : x
  2. Step 2: Convert to fraction form
    14,855.57/20,500.69 = 8,049.60/x
  3. Step 3: Cross multiply
    14,855.57x = 20,500.69 × 8,049.60
  4. Step 4: Simplify right side
    14,855.57x = 165,022,354.22
  5. Step 5: Solve for x
    x = 165,022,354.22/14,855.57
  6. Step 6: Final answer
    x = 11,108.45

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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.