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Finding the Fourth Proportional to 8,503.07, 12,754.61 and 2,659.68

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Solution

The fourth proportional to 8,503.07, 12,754.61 and 2,659.68 is: 3,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.07 : 12,754.61 = 2,659.68 : x
  2. Step 2: Convert to fraction form
    8,503.07/12,754.61 = 2,659.68/x
  3. Step 3: Cross multiply
    8,503.07x = 12,754.61 × 2,659.68
  4. Step 4: Simplify right side
    8,503.07x = 33,923,167.83
  5. Step 5: Solve for x
    x = 33,923,167.83/8,503.07
  6. Step 6: Final answer
    x = 3,989.52

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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.