Home / 18,772.35-28,166.38-8,236.94

Finding the Fourth Proportional to 18,772.35, 28,166.38 and 8,236.94

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Solution

The fourth proportional to 18,772.35, 28,166.38 and 8,236.94 is: 12,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.35 : 28,166.38 = 8,236.94 : x
  2. Step 2: Convert to fraction form
    18,772.35/28,166.38 = 8,236.94/x
  3. Step 3: Cross multiply
    18,772.35x = 28,166.38 × 8,236.94
  4. Step 4: Simplify right side
    18,772.35x = 232,004,620.65
  5. Step 5: Solve for x
    x = 232,004,620.65/18,772.35
  6. Step 6: Final answer
    x = 12,358.85

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1.5x scale

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.