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Finding the Fourth Proportional to 18,429.00, 27,639.38 and 8,941.01

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Solution

The fourth proportional to 18,429.00, 27,639.38 and 8,941.01 is: 13,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.00 : 27,639.38 = 8,941.01 : x
  2. Step 2: Convert to fraction form
    18,429.00/27,639.38 = 8,941.01/x
  3. Step 3: Cross multiply
    18,429.00x = 27,639.38 × 8,941.01
  4. Step 4: Simplify right side
    18,429.00x = 247,123,857.13
  5. Step 5: Solve for x
    x = 247,123,857.13/18,429.00
  6. Step 6: Final answer
    x = 13,409.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.