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Finding the Fourth Proportional to 8,649.95, 12,974.39 and 3,103.14

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Solution

The fourth proportional to 8,649.95, 12,974.39 and 3,103.14 is: 4,654.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.95 : 12,974.39 = 3,103.14 : x
  2. Step 2: Convert to fraction form
    8,649.95/12,974.39 = 3,103.14/x
  3. Step 3: Cross multiply
    8,649.95x = 12,974.39 × 3,103.14
  4. Step 4: Simplify right side
    8,649.95x = 40,261,333.07
  5. Step 5: Solve for x
    x = 40,261,333.07/8,649.95
  6. Step 6: Final answer
    x = 4,654.52

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1.5x scale

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.