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Finding the Fourth Proportional to 12,453.08, 18,682.94 and 5,433.66

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Solution

The fourth proportional to 12,453.08, 18,682.94 and 5,433.66 is: 8,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.08 : 18,682.94 = 5,433.66 : x
  2. Step 2: Convert to fraction form
    12,453.08/18,682.94 = 5,433.66/x
  3. Step 3: Cross multiply
    12,453.08x = 18,682.94 × 5,433.66
  4. Step 4: Simplify right side
    12,453.08x = 101,516,757.34
  5. Step 5: Solve for x
    x = 101,516,757.34/12,453.08
  6. Step 6: Final answer
    x = 8,151.94

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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.