Home / 8,099.91-12,150.14-2,905.79

Finding the Fourth Proportional to 8,099.91, 12,150.14 and 2,905.79

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Solution

The fourth proportional to 8,099.91, 12,150.14 and 2,905.79 is: 4,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.91 : 12,150.14 = 2,905.79 : x
  2. Step 2: Convert to fraction form
    8,099.91/12,150.14 = 2,905.79/x
  3. Step 3: Cross multiply
    8,099.91x = 12,150.14 × 2,905.79
  4. Step 4: Simplify right side
    8,099.91x = 35,305,680.03
  5. Step 5: Solve for x
    x = 35,305,680.03/8,099.91
  6. Step 6: Final answer
    x = 4,358.77

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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.