Home / 13,198.20-19,797.30-11,124.60

Finding the Fourth Proportional to 13,198.20, 19,797.30 and 11,124.60

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Solution

The fourth proportional to 13,198.20, 19,797.30 and 11,124.60 is: 16,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.20 : 19,797.30 = 11,124.60 : x
  2. Step 2: Convert to fraction form
    13,198.20/19,797.30 = 11,124.60/x
  3. Step 3: Cross multiply
    13,198.20x = 19,797.30 × 11,124.60
  4. Step 4: Simplify right side
    13,198.20x = 220,237,043.58
  5. Step 5: Solve for x
    x = 220,237,043.58/13,198.20
  6. Step 6: Final answer
    x = 16,686.90

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1.5x scale

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.