Home / 18,745.25-25,863.64-11,188.49

Finding the Fourth Proportional to 18,745.25, 25,863.64 and 11,188.49

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Solution

The fourth proportional to 18,745.25, 25,863.64 and 11,188.49 is: 15,437.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.25 : 25,863.64 = 11,188.49 : x
  2. Step 2: Convert to fraction form
    18,745.25/25,863.64 = 11,188.49/x
  3. Step 3: Cross multiply
    18,745.25x = 25,863.64 × 11,188.49
  4. Step 4: Simplify right side
    18,745.25x = 289,374,920.21
  5. Step 5: Solve for x
    x = 289,374,920.21/18,745.25
  6. Step 6: Final answer
    x = 15,437.24

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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.