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Finding the Fourth Proportional to 8,711.00, 13,066.74 and 2,137.19

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Solution

The fourth proportional to 8,711.00, 13,066.74 and 2,137.19 is: 3,205.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.00 : 13,066.74 = 2,137.19 : x
  2. Step 2: Convert to fraction form
    8,711.00/13,066.74 = 2,137.19/x
  3. Step 3: Cross multiply
    8,711.00x = 13,066.74 × 2,137.19
  4. Step 4: Simplify right side
    8,711.00x = 27,926,040.73
  5. Step 5: Solve for x
    x = 27,926,040.73/8,711.00
  6. Step 6: Final answer
    x = 3,205.84

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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.