Home / 8,649.45-12,974.58-3,103.38

Finding the Fourth Proportional to 8,649.45, 12,974.58 and 3,103.38

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Solution

The fourth proportional to 8,649.45, 12,974.58 and 3,103.38 is: 4,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.45 : 12,974.58 = 3,103.38 : x
  2. Step 2: Convert to fraction form
    8,649.45/12,974.58 = 3,103.38/x
  3. Step 3: Cross multiply
    8,649.45x = 12,974.58 × 3,103.38
  4. Step 4: Simplify right side
    8,649.45x = 40,265,052.08
  5. Step 5: Solve for x
    x = 40,265,052.08/8,649.45
  6. Step 6: Final answer
    x = 4,655.22

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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.