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Finding the Fourth Proportional to 11,373.07, 17,078.13 and 7,018.21

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Solution

The fourth proportional to 11,373.07, 17,078.13 and 7,018.21 is: 10,538.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,373.07 : 17,078.13 = 7,018.21 : x
  2. Step 2: Convert to fraction form
    11,373.07/17,078.13 = 7,018.21/x
  3. Step 3: Cross multiply
    11,373.07x = 17,078.13 × 7,018.21
  4. Step 4: Simplify right side
    11,373.07x = 119,857,902.75
  5. Step 5: Solve for x
    x = 119,857,902.75/11,373.07
  6. Step 6: Final answer
    x = 10,538.75

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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.