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Finding the Fourth Proportional to 8,272.71, 12,410.90 and 2,725.83

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Solution

The fourth proportional to 8,272.71, 12,410.90 and 2,725.83 is: 4,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.71 : 12,410.90 = 2,725.83 : x
  2. Step 2: Convert to fraction form
    8,272.71/12,410.90 = 2,725.83/x
  3. Step 3: Cross multiply
    8,272.71x = 12,410.90 × 2,725.83
  4. Step 4: Simplify right side
    8,272.71x = 33,829,989.92
  5. Step 5: Solve for x
    x = 33,829,989.92/8,272.71
  6. Step 6: Final answer
    x = 4,089.35

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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.