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Finding the Fourth Proportional to 18,018.34, 27,008.96 and 6,922.02

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Solution

The fourth proportional to 18,018.34, 27,008.96 and 6,922.02 is: 10,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.34 : 27,008.96 = 6,922.02 : x
  2. Step 2: Convert to fraction form
    18,018.34/27,008.96 = 6,922.02/x
  3. Step 3: Cross multiply
    18,018.34x = 27,008.96 × 6,922.02
  4. Step 4: Simplify right side
    18,018.34x = 186,956,561.30
  5. Step 5: Solve for x
    x = 186,956,561.30/18,018.34
  6. Step 6: Final answer
    x = 10,375.90

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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.