Home / 8,238.08-12,361.64-5,426.88

Finding the Fourth Proportional to 8,238.08, 12,361.64 and 5,426.88

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Solution

The fourth proportional to 8,238.08, 12,361.64 and 5,426.88 is: 8,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.08 : 12,361.64 = 5,426.88 : x
  2. Step 2: Convert to fraction form
    8,238.08/12,361.64 = 5,426.88/x
  3. Step 3: Cross multiply
    8,238.08x = 12,361.64 × 5,426.88
  4. Step 4: Simplify right side
    8,238.08x = 67,085,136.88
  5. Step 5: Solve for x
    x = 67,085,136.88/8,238.08
  6. Step 6: Final answer
    x = 8,143.30

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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.