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Finding the Fourth Proportional to 8,274.88, 12,415.02 and 2,431.54

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Solution

The fourth proportional to 8,274.88, 12,415.02 and 2,431.54 is: 3,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.88 : 12,415.02 = 2,431.54 : x
  2. Step 2: Convert to fraction form
    8,274.88/12,415.02 = 2,431.54/x
  3. Step 3: Cross multiply
    8,274.88x = 12,415.02 × 2,431.54
  4. Step 4: Simplify right side
    8,274.88x = 30,187,617.73
  5. Step 5: Solve for x
    x = 30,187,617.73/8,274.88
  6. Step 6: Final answer
    x = 3,648.10

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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.