Home / 8,371.07-12,548.61-2,821.55

Finding the Fourth Proportional to 8,371.07, 12,548.61 and 2,821.55

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Solution

The fourth proportional to 8,371.07, 12,548.61 and 2,821.55 is: 4,229.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.07 : 12,548.61 = 2,821.55 : x
  2. Step 2: Convert to fraction form
    8,371.07/12,548.61 = 2,821.55/x
  3. Step 3: Cross multiply
    8,371.07x = 12,548.61 × 2,821.55
  4. Step 4: Simplify right side
    8,371.07x = 35,406,467.80
  5. Step 5: Solve for x
    x = 35,406,467.80/8,371.07
  6. Step 6: Final answer
    x = 4,229.63

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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.