Home / 12,957.90-19,436.85-4,198.92

Finding the Fourth Proportional to 12,957.90, 19,436.85 and 4,198.92

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Solution

The fourth proportional to 12,957.90, 19,436.85 and 4,198.92 is: 6,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.90 : 19,436.85 = 4,198.92 : x
  2. Step 2: Convert to fraction form
    12,957.90/19,436.85 = 4,198.92/x
  3. Step 3: Cross multiply
    12,957.90x = 19,436.85 × 4,198.92
  4. Step 4: Simplify right side
    12,957.90x = 81,613,778.20
  5. Step 5: Solve for x
    x = 81,613,778.20/12,957.90
  6. Step 6: Final answer
    x = 6,298.38

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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.