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Finding the Fourth Proportional to 13,375.92, 18,451.62 and 8,652

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Solution

The fourth proportional to 13,375.92, 18,451.62 and 8,652 is: 11,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.92 : 18,451.62 = 8,652 : x
  2. Step 2: Convert to fraction form
    13,375.92/18,451.62 = 8,652/x
  3. Step 3: Cross multiply
    13,375.92x = 18,451.62 × 8,652
  4. Step 4: Simplify right side
    13,375.92x = 159,643,416.24
  5. Step 5: Solve for x
    x = 159,643,416.24/13,375.92
  6. Step 6: Final answer
    x = 11,935.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.