Home / 12,278.96-18,401.96-6,723.92

Finding the Fourth Proportional to 12,278.96, 18,401.96 and 6,723.92

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Solution

The fourth proportional to 12,278.96, 18,401.96 and 6,723.92 is: 10,076.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.96 : 18,401.96 = 6,723.92 : x
  2. Step 2: Convert to fraction form
    12,278.96/18,401.96 = 6,723.92/x
  3. Step 3: Cross multiply
    12,278.96x = 18,401.96 × 6,723.92
  4. Step 4: Simplify right side
    12,278.96x = 123,733,306.88
  5. Step 5: Solve for x
    x = 123,733,306.88/12,278.96
  6. Step 6: Final answer
    x = 10,076.86

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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.