Home / 8,091.60-12,134.04-3,160.56

Finding the Fourth Proportional to 8,091.60, 12,134.04 and 3,160.56

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Solution

The fourth proportional to 8,091.60, 12,134.04 and 3,160.56 is: 4,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.60 : 12,134.04 = 3,160.56 : x
  2. Step 2: Convert to fraction form
    8,091.60/12,134.04 = 3,160.56/x
  3. Step 3: Cross multiply
    8,091.60x = 12,134.04 × 3,160.56
  4. Step 4: Simplify right side
    8,091.60x = 38,350,361.46
  5. Step 5: Solve for x
    x = 38,350,361.46/8,091.60
  6. Step 6: Final answer
    x = 4,739.53

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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.