Home / 8,020.68-12,031.90-2,756.09

Finding the Fourth Proportional to 8,020.68, 12,031.90 and 2,756.09

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Solution

The fourth proportional to 8,020.68, 12,031.90 and 2,756.09 is: 4,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.68 : 12,031.90 = 2,756.09 : x
  2. Step 2: Convert to fraction form
    8,020.68/12,031.90 = 2,756.09/x
  3. Step 3: Cross multiply
    8,020.68x = 12,031.90 × 2,756.09
  4. Step 4: Simplify right side
    8,020.68x = 33,160,932.22
  5. Step 5: Solve for x
    x = 33,160,932.22/8,020.68
  6. Step 6: Final answer
    x = 4,134.43

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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.