Home / 11,272.55-15,546.68-8,446.56

Finding the Fourth Proportional to 11,272.55, 15,546.68 and 8,446.56

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Solution

The fourth proportional to 11,272.55, 15,546.68 and 8,446.56 is: 11,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.55 : 15,546.68 = 8,446.56 : x
  2. Step 2: Convert to fraction form
    11,272.55/15,546.68 = 8,446.56/x
  3. Step 3: Cross multiply
    11,272.55x = 15,546.68 × 8,446.56
  4. Step 4: Simplify right side
    11,272.55x = 131,315,965.42
  5. Step 5: Solve for x
    x = 131,315,965.42/11,272.55
  6. Step 6: Final answer
    x = 11,649.18

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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.