Home / 18,659.85-25,754.99-11,591.61

Finding the Fourth Proportional to 18,659.85, 25,754.99 and 11,591.61

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Solution

The fourth proportional to 18,659.85, 25,754.99 and 11,591.61 is: 15,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.85 : 25,754.99 = 11,591.61 : x
  2. Step 2: Convert to fraction form
    18,659.85/25,754.99 = 11,591.61/x
  3. Step 3: Cross multiply
    18,659.85x = 25,754.99 × 11,591.61
  4. Step 4: Simplify right side
    18,659.85x = 298,541,741.68
  5. Step 5: Solve for x
    x = 298,541,741.68/18,659.85
  6. Step 6: Final answer
    x = 15,999.15

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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.