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Finding the Fourth Proportional to 8,361.68, 12,544.46 and 2,814.89

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Solution

The fourth proportional to 8,361.68, 12,544.46 and 2,814.89 is: 4,222.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.68 : 12,544.46 = 2,814.89 : x
  2. Step 2: Convert to fraction form
    8,361.68/12,544.46 = 2,814.89/x
  3. Step 3: Cross multiply
    8,361.68x = 12,544.46 × 2,814.89
  4. Step 4: Simplify right side
    8,361.68x = 35,311,198.21
  5. Step 5: Solve for x
    x = 35,311,198.21/8,361.68
  6. Step 6: Final answer
    x = 4,222.98

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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.