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Finding the Fourth Proportional to 14,824.96, 20,455 and 8,855.44

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Solution

The fourth proportional to 14,824.96, 20,455 and 8,855.44 is: 12,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,824.96 : 20,455 = 8,855.44 : x
  2. Step 2: Convert to fraction form
    14,824.96/20,455 = 8,855.44/x
  3. Step 3: Cross multiply
    14,824.96x = 20,455 × 8,855.44
  4. Step 4: Simplify right side
    14,824.96x = 181,138,025.20
  5. Step 5: Solve for x
    x = 181,138,025.20/14,824.96
  6. Step 6: Final answer
    x = 12,218.45

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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.