Home / 8,198.12-11,313.60-4,661.30

Finding the Fourth Proportional to 8,198.12, 11,313.60 and 4,661.30

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Solution

The fourth proportional to 8,198.12, 11,313.60 and 4,661.30 is: 6,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.12 : 11,313.60 = 4,661.30 : x
  2. Step 2: Convert to fraction form
    8,198.12/11,313.60 = 4,661.30/x
  3. Step 3: Cross multiply
    8,198.12x = 11,313.60 × 4,661.30
  4. Step 4: Simplify right side
    8,198.12x = 52,736,083.68
  5. Step 5: Solve for x
    x = 52,736,083.68/8,198.12
  6. Step 6: Final answer
    x = 6,432.70

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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.