Home / 8,198.72-12,298.40-2,042.88

Finding the Fourth Proportional to 8,198.72, 12,298.40 and 2,042.88

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Solution

The fourth proportional to 8,198.72, 12,298.40 and 2,042.88 is: 3,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.72 : 12,298.40 = 2,042.88 : x
  2. Step 2: Convert to fraction form
    8,198.72/12,298.40 = 2,042.88/x
  3. Step 3: Cross multiply
    8,198.72x = 12,298.40 × 2,042.88
  4. Step 4: Simplify right side
    8,198.72x = 25,124,155.39
  5. Step 5: Solve for x
    x = 25,124,155.39/8,198.72
  6. Step 6: Final answer
    x = 3,064.40

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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.