Home / 8,132.56-12,189.60-3,201.28

Finding the Fourth Proportional to 8,132.56, 12,189.60 and 3,201.28

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Solution

The fourth proportional to 8,132.56, 12,189.60 and 3,201.28 is: 4,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.56 : 12,189.60 = 3,201.28 : x
  2. Step 2: Convert to fraction form
    8,132.56/12,189.60 = 3,201.28/x
  3. Step 3: Cross multiply
    8,132.56x = 12,189.60 × 3,201.28
  4. Step 4: Simplify right side
    8,132.56x = 39,022,322.69
  5. Step 5: Solve for x
    x = 39,022,322.69/8,132.56
  6. Step 6: Final answer
    x = 4,798.28

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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.