Home / 12,614.20-18,932.96-6,378.60

Finding the Fourth Proportional to 12,614.20, 18,932.96 and 6,378.60

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Solution

The fourth proportional to 12,614.20, 18,932.96 and 6,378.60 is: 9,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614.20 : 18,932.96 = 6,378.60 : x
  2. Step 2: Convert to fraction form
    12,614.20/18,932.96 = 6,378.60/x
  3. Step 3: Cross multiply
    12,614.20x = 18,932.96 × 6,378.60
  4. Step 4: Simplify right side
    12,614.20x = 120,765,778.66
  5. Step 5: Solve for x
    x = 120,765,778.66/12,614.20
  6. Step 6: Final answer
    x = 9,573.80

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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.