Home / 12,286.20-16,945.56-8,301

Finding the Fourth Proportional to 12,286.20, 16,945.56 and 8,301

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Solution

The fourth proportional to 12,286.20, 16,945.56 and 8,301 is: 11,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.20 : 16,945.56 = 8,301 : x
  2. Step 2: Convert to fraction form
    12,286.20/16,945.56 = 8,301/x
  3. Step 3: Cross multiply
    12,286.20x = 16,945.56 × 8,301
  4. Step 4: Simplify right side
    12,286.20x = 140,665,093.56
  5. Step 5: Solve for x
    x = 140,665,093.56/12,286.20
  6. Step 6: Final answer
    x = 11,449.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.