Home / 14,912.55-20,579.34-8,198.85

Finding the Fourth Proportional to 14,912.55, 20,579.34 and 8,198.85

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Solution

The fourth proportional to 14,912.55, 20,579.34 and 8,198.85 is: 11,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912.55 : 20,579.34 = 8,198.85 : x
  2. Step 2: Convert to fraction form
    14,912.55/20,579.34 = 8,198.85/x
  3. Step 3: Cross multiply
    14,912.55x = 20,579.34 × 8,198.85
  4. Step 4: Simplify right side
    14,912.55x = 168,726,921.76
  5. Step 5: Solve for x
    x = 168,726,921.76/14,912.55
  6. Step 6: Final answer
    x = 11,314.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.