Home / 18,611.19-25,687.49-11,447.26

Finding the Fourth Proportional to 18,611.19, 25,687.49 and 11,447.26

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Solution

The fourth proportional to 18,611.19, 25,687.49 and 11,447.26 is: 15,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.19 : 25,687.49 = 11,447.26 : x
  2. Step 2: Convert to fraction form
    18,611.19/25,687.49 = 11,447.26/x
  3. Step 3: Cross multiply
    18,611.19x = 25,687.49 × 11,447.26
  4. Step 4: Simplify right side
    18,611.19x = 294,051,437.50
  5. Step 5: Solve for x
    x = 294,051,437.50/18,611.19
  6. Step 6: Final answer
    x = 15,799.71

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Half scale
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Double scale
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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.