Home / 12,963.92-19,449.72-4,198.64

Finding the Fourth Proportional to 12,963.92, 19,449.72 and 4,198.64

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Solution

The fourth proportional to 12,963.92, 19,449.72 and 4,198.64 is: 6,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.92 : 19,449.72 = 4,198.64 : x
  2. Step 2: Convert to fraction form
    12,963.92/19,449.72 = 4,198.64/x
  3. Step 3: Cross multiply
    12,963.92x = 19,449.72 × 4,198.64
  4. Step 4: Simplify right side
    12,963.92x = 81,662,275.13
  5. Step 5: Solve for x
    x = 81,662,275.13/12,963.92
  6. Step 6: Final answer
    x = 6,299.20

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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.