Home / 8,296.49-12,440.68-3,620.45

Finding the Fourth Proportional to 8,296.49, 12,440.68 and 3,620.45

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Solution

The fourth proportional to 8,296.49, 12,440.68 and 3,620.45 is: 5,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,296.49 : 12,440.68 = 3,620.45 : x
  2. Step 2: Convert to fraction form
    8,296.49/12,440.68 = 3,620.45/x
  3. Step 3: Cross multiply
    8,296.49x = 12,440.68 × 3,620.45
  4. Step 4: Simplify right side
    8,296.49x = 45,040,859.91
  5. Step 5: Solve for x
    x = 45,040,859.91/8,296.49
  6. Step 6: Final answer
    x = 5,428.91

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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.