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Finding the Fourth Proportional to 8,562.82, 12,831.60 and 3,884.26

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Solution

The fourth proportional to 8,562.82, 12,831.60 and 3,884.26 is: 5,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.82 : 12,831.60 = 3,884.26 : x
  2. Step 2: Convert to fraction form
    8,562.82/12,831.60 = 3,884.26/x
  3. Step 3: Cross multiply
    8,562.82x = 12,831.60 × 3,884.26
  4. Step 4: Simplify right side
    8,562.82x = 49,841,270.62
  5. Step 5: Solve for x
    x = 49,841,270.62/8,562.82
  6. Step 6: Final answer
    x = 5,820.66

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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.