Home / 8,103.43-11,182.35-4,518.78

Finding the Fourth Proportional to 8,103.43, 11,182.35 and 4,518.78

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Solution

The fourth proportional to 8,103.43, 11,182.35 and 4,518.78 is: 6,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.43 : 11,182.35 = 4,518.78 : x
  2. Step 2: Convert to fraction form
    8,103.43/11,182.35 = 4,518.78/x
  3. Step 3: Cross multiply
    8,103.43x = 11,182.35 × 4,518.78
  4. Step 4: Simplify right side
    8,103.43x = 50,530,579.53
  5. Step 5: Solve for x
    x = 50,530,579.53/8,103.43
  6. Step 6: Final answer
    x = 6,235.70

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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.