Home / 8,458.20-12,685.37-3,193.77

Finding the Fourth Proportional to 8,458.20, 12,685.37 and 3,193.77

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Solution

The fourth proportional to 8,458.20, 12,685.37 and 3,193.77 is: 4,789.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.20 : 12,685.37 = 3,193.77 : x
  2. Step 2: Convert to fraction form
    8,458.20/12,685.37 = 3,193.77/x
  3. Step 3: Cross multiply
    8,458.20x = 12,685.37 × 3,193.77
  4. Step 4: Simplify right side
    8,458.20x = 40,514,138.18
  5. Step 5: Solve for x
    x = 40,514,138.18/8,458.20
  6. Step 6: Final answer
    x = 4,789.92

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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.