Home / 8,112.69-12,168.09-2,269.76

Finding the Fourth Proportional to 8,112.69, 12,168.09 and 2,269.76

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Solution

The fourth proportional to 8,112.69, 12,168.09 and 2,269.76 is: 3,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.69 : 12,168.09 = 2,269.76 : x
  2. Step 2: Convert to fraction form
    8,112.69/12,168.09 = 2,269.76/x
  3. Step 3: Cross multiply
    8,112.69x = 12,168.09 × 2,269.76
  4. Step 4: Simplify right side
    8,112.69x = 27,618,583.12
  5. Step 5: Solve for x
    x = 27,618,583.12/8,112.69
  6. Step 6: Final answer
    x = 3,404.37

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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.