Home / 8,384.40-12,578.49-2,837.43

Finding the Fourth Proportional to 8,384.40, 12,578.49 and 2,837.43

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Solution

The fourth proportional to 8,384.40, 12,578.49 and 2,837.43 is: 4,256.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,384.40 : 12,578.49 = 2,837.43 : x
  2. Step 2: Convert to fraction form
    8,384.40/12,578.49 = 2,837.43/x
  3. Step 3: Cross multiply
    8,384.40x = 12,578.49 × 2,837.43
  4. Step 4: Simplify right side
    8,384.40x = 35,690,584.88
  5. Step 5: Solve for x
    x = 35,690,584.88/8,384.40
  6. Step 6: Final answer
    x = 4,256.78

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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.