Home / 8,626.28-12,919.97-5,156.24

Finding the Fourth Proportional to 8,626.28, 12,919.97 and 5,156.24

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Solution

The fourth proportional to 8,626.28, 12,919.97 and 5,156.24 is: 7,722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.28 : 12,919.97 = 5,156.24 : x
  2. Step 2: Convert to fraction form
    8,626.28/12,919.97 = 5,156.24/x
  3. Step 3: Cross multiply
    8,626.28x = 12,919.97 × 5,156.24
  4. Step 4: Simplify right side
    8,626.28x = 66,618,414.40
  5. Step 5: Solve for x
    x = 66,618,414.40/8,626.28
  6. Step 6: Final answer
    x = 7,722.73

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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.