Home / 12,179.57-18,271.61-3,861.68

Finding the Fourth Proportional to 12,179.57, 18,271.61 and 3,861.68

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Solution

The fourth proportional to 12,179.57, 18,271.61 and 3,861.68 is: 5,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.57 : 18,271.61 = 3,861.68 : x
  2. Step 2: Convert to fraction form
    12,179.57/18,271.61 = 3,861.68/x
  3. Step 3: Cross multiply
    12,179.57x = 18,271.61 × 3,861.68
  4. Step 4: Simplify right side
    12,179.57x = 70,559,000.24
  5. Step 5: Solve for x
    x = 70,559,000.24/12,179.57
  6. Step 6: Final answer
    x = 5,793.23

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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.