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Finding the Fourth Proportional to 8,240.72, 12,361.84 and 2,694.08

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Solution

The fourth proportional to 8,240.72, 12,361.84 and 2,694.08 is: 4,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.72 : 12,361.84 = 2,694.08 : x
  2. Step 2: Convert to fraction form
    8,240.72/12,361.84 = 2,694.08/x
  3. Step 3: Cross multiply
    8,240.72x = 12,361.84 × 2,694.08
  4. Step 4: Simplify right side
    8,240.72x = 33,303,785.91
  5. Step 5: Solve for x
    x = 33,303,785.91/8,240.72
  6. Step 6: Final answer
    x = 4,041.37

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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.