Home / 8,154.14-12,231.50-2,889.70

Finding the Fourth Proportional to 8,154.14, 12,231.50 and 2,889.70

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Solution

The fourth proportional to 8,154.14, 12,231.50 and 2,889.70 is: 4,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.14 : 12,231.50 = 2,889.70 : x
  2. Step 2: Convert to fraction form
    8,154.14/12,231.50 = 2,889.70/x
  3. Step 3: Cross multiply
    8,154.14x = 12,231.50 × 2,889.70
  4. Step 4: Simplify right side
    8,154.14x = 35,345,365.55
  5. Step 5: Solve for x
    x = 35,345,365.55/8,154.14
  6. Step 6: Final answer
    x = 4,334.65

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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.