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Finding the Fourth Proportional to 8,252.78, 12,380.99 and 4,095.05

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Solution

The fourth proportional to 8,252.78, 12,380.99 and 4,095.05 is: 6,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,252.78 : 12,380.99 = 4,095.05 : x
  2. Step 2: Convert to fraction form
    8,252.78/12,380.99 = 4,095.05/x
  3. Step 3: Cross multiply
    8,252.78x = 12,380.99 × 4,095.05
  4. Step 4: Simplify right side
    8,252.78x = 50,700,690.72
  5. Step 5: Solve for x
    x = 50,700,690.72/8,252.78
  6. Step 6: Final answer
    x = 6,143.47

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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.