Home / 11,942.28-16,479.62-6,636.92

Finding the Fourth Proportional to 11,942.28, 16,479.62 and 6,636.92

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Solution

The fourth proportional to 11,942.28, 16,479.62 and 6,636.92 is: 9,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.28 : 16,479.62 = 6,636.92 : x
  2. Step 2: Convert to fraction form
    11,942.28/16,479.62 = 6,636.92/x
  3. Step 3: Cross multiply
    11,942.28x = 16,479.62 × 6,636.92
  4. Step 4: Simplify right side
    11,942.28x = 109,373,919.57
  5. Step 5: Solve for x
    x = 109,373,919.57/11,942.28
  6. Step 6: Final answer
    x = 9,158.55

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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.