Home / 18,711.57-28,072.62-8,182.52

Finding the Fourth Proportional to 18,711.57, 28,072.62 and 8,182.52

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Solution

The fourth proportional to 18,711.57, 28,072.62 and 8,182.52 is: 12,276.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.57 : 28,072.62 = 8,182.52 : x
  2. Step 2: Convert to fraction form
    18,711.57/28,072.62 = 8,182.52/x
  3. Step 3: Cross multiply
    18,711.57x = 28,072.62 × 8,182.52
  4. Step 4: Simplify right side
    18,711.57x = 229,704,634.24
  5. Step 5: Solve for x
    x = 229,704,634.24/18,711.57
  6. Step 6: Final answer
    x = 12,276.07

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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.