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Finding the Fourth Proportional to 8,568.70, 12,850.09 and 5,812.18

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Solution

The fourth proportional to 8,568.70, 12,850.09 and 5,812.18 is: 8,716.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.70 : 12,850.09 = 5,812.18 : x
  2. Step 2: Convert to fraction form
    8,568.70/12,850.09 = 5,812.18/x
  3. Step 3: Cross multiply
    8,568.70x = 12,850.09 × 5,812.18
  4. Step 4: Simplify right side
    8,568.70x = 74,687,036.10
  5. Step 5: Solve for x
    x = 74,687,036.10/8,568.70
  6. Step 6: Final answer
    x = 8,716.26

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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.