Home / 8,105.23-12,152.99-3,168.99

Finding the Fourth Proportional to 8,105.23, 12,152.99 and 3,168.99

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Solution

The fourth proportional to 8,105.23, 12,152.99 and 3,168.99 is: 4,751.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.23 : 12,152.99 = 3,168.99 : x
  2. Step 2: Convert to fraction form
    8,105.23/12,152.99 = 3,168.99/x
  3. Step 3: Cross multiply
    8,105.23x = 12,152.99 × 3,168.99
  4. Step 4: Simplify right side
    8,105.23x = 38,512,693.88
  5. Step 5: Solve for x
    x = 38,512,693.88/8,105.23
  6. Step 6: Final answer
    x = 4,751.58

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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.