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Finding the Fourth Proportional to 8,523.59, 12,786.76 and 2,520.27

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Solution

The fourth proportional to 8,523.59, 12,786.76 and 2,520.27 is: 3,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,523.59 : 12,786.76 = 2,520.27 : x
  2. Step 2: Convert to fraction form
    8,523.59/12,786.76 = 2,520.27/x
  3. Step 3: Cross multiply
    8,523.59x = 12,786.76 × 2,520.27
  4. Step 4: Simplify right side
    8,523.59x = 32,226,076.60
  5. Step 5: Solve for x
    x = 32,226,076.60/8,523.59
  6. Step 6: Final answer
    x = 3,780.81

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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.