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Finding the Fourth Proportional to 8,812.11, 12,161.27 and 5,822.71

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Solution

The fourth proportional to 8,812.11, 12,161.27 and 5,822.71 is: 8,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.11 : 12,161.27 = 5,822.71 : x
  2. Step 2: Convert to fraction form
    8,812.11/12,161.27 = 5,822.71/x
  3. Step 3: Cross multiply
    8,812.11x = 12,161.27 × 5,822.71
  4. Step 4: Simplify right side
    8,812.11x = 70,811,532.60
  5. Step 5: Solve for x
    x = 70,811,532.60/8,812.11
  6. Step 6: Final answer
    x = 8,035.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.