Home / 8,419.97-12,629.99-2,576.57

Finding the Fourth Proportional to 8,419.97, 12,629.99 and 2,576.57

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Solution

The fourth proportional to 8,419.97, 12,629.99 and 2,576.57 is: 3,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.97 : 12,629.99 = 2,576.57 : x
  2. Step 2: Convert to fraction form
    8,419.97/12,629.99 = 2,576.57/x
  3. Step 3: Cross multiply
    8,419.97x = 12,629.99 × 2,576.57
  4. Step 4: Simplify right side
    8,419.97x = 32,541,996.63
  5. Step 5: Solve for x
    x = 32,541,996.63/8,419.97
  6. Step 6: Final answer
    x = 3,864.86

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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.