Home / 8,522.38-12,786.65-2,976.54

Finding the Fourth Proportional to 8,522.38, 12,786.65 and 2,976.54

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Solution

The fourth proportional to 8,522.38, 12,786.65 and 2,976.54 is: 4,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.38 : 12,786.65 = 2,976.54 : x
  2. Step 2: Convert to fraction form
    8,522.38/12,786.65 = 2,976.54/x
  3. Step 3: Cross multiply
    8,522.38x = 12,786.65 × 2,976.54
  4. Step 4: Simplify right side
    8,522.38x = 38,059,975.19
  5. Step 5: Solve for x
    x = 38,059,975.19/8,522.38
  6. Step 6: Final answer
    x = 4,465.89

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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.