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Finding the Fourth Proportional to 6,863.20, 10,273.20 and 4,919.20

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Solution

The fourth proportional to 6,863.20, 10,273.20 and 4,919.20 is: 7,363.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,863.20 : 10,273.20 = 4,919.20 : x
  2. Step 2: Convert to fraction form
    6,863.20/10,273.20 = 4,919.20/x
  3. Step 3: Cross multiply
    6,863.20x = 10,273.20 × 4,919.20
  4. Step 4: Simplify right side
    6,863.20x = 50,535,925.44
  5. Step 5: Solve for x
    x = 50,535,925.44/6,863.20
  6. Step 6: Final answer
    x = 7,363.32

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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.