Home / 12,396.30-18,596.79-4,078.73

Finding the Fourth Proportional to 12,396.30, 18,596.79 and 4,078.73

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Solution

The fourth proportional to 12,396.30, 18,596.79 and 4,078.73 is: 6,118.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.30 : 18,596.79 = 4,078.73 : x
  2. Step 2: Convert to fraction form
    12,396.30/18,596.79 = 4,078.73/x
  3. Step 3: Cross multiply
    12,396.30x = 18,596.79 × 4,078.73
  4. Step 4: Simplify right side
    12,396.30x = 75,851,192.29
  5. Step 5: Solve for x
    x = 75,851,192.29/12,396.30
  6. Step 6: Final answer
    x = 6,118.86

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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.