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Finding the Fourth Proportional to 18,889.00, 28,329.85 and 7,199.48

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Solution

The fourth proportional to 18,889.00, 28,329.85 and 7,199.48 is: 10,797.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.00 : 28,329.85 = 7,199.48 : x
  2. Step 2: Convert to fraction form
    18,889.00/28,329.85 = 7,199.48/x
  3. Step 3: Cross multiply
    18,889.00x = 28,329.85 × 7,199.48
  4. Step 4: Simplify right side
    18,889.00x = 203,960,268.30
  5. Step 5: Solve for x
    x = 203,960,268.30/18,889.00
  6. Step 6: Final answer
    x = 10,797.83

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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.