Home / 8,133.38-12,191.84-3,201.09

Finding the Fourth Proportional to 8,133.38, 12,191.84 and 3,201.09

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Solution

The fourth proportional to 8,133.38, 12,191.84 and 3,201.09 is: 4,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.38 : 12,191.84 = 3,201.09 : x
  2. Step 2: Convert to fraction form
    8,133.38/12,191.84 = 3,201.09/x
  3. Step 3: Cross multiply
    8,133.38x = 12,191.84 × 3,201.09
  4. Step 4: Simplify right side
    8,133.38x = 39,027,177.11
  5. Step 5: Solve for x
    x = 39,027,177.11/8,133.38
  6. Step 6: Final answer
    x = 4,798.40

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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.