Home / 15,171.26-20,936.58-8,711.96

Finding the Fourth Proportional to 15,171.26, 20,936.58 and 8,711.96

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Solution

The fourth proportional to 15,171.26, 20,936.58 and 8,711.96 is: 12,022.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.26 : 20,936.58 = 8,711.96 : x
  2. Step 2: Convert to fraction form
    15,171.26/20,936.58 = 8,711.96/x
  3. Step 3: Cross multiply
    15,171.26x = 20,936.58 × 8,711.96
  4. Step 4: Simplify right side
    15,171.26x = 182,398,647.50
  5. Step 5: Solve for x
    x = 182,398,647.50/15,171.26
  6. Step 6: Final answer
    x = 12,022.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.