Home / 13,249.11-18,262.49-11,018.37

Finding the Fourth Proportional to 13,249.11, 18,262.49 and 11,018.37

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Solution

The fourth proportional to 13,249.11, 18,262.49 and 11,018.37 is: 15,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.11 : 18,262.49 = 11,018.37 : x
  2. Step 2: Convert to fraction form
    13,249.11/18,262.49 = 11,018.37/x
  3. Step 3: Cross multiply
    13,249.11x = 18,262.49 × 11,018.37
  4. Step 4: Simplify right side
    13,249.11x = 201,222,816.85
  5. Step 5: Solve for x
    x = 201,222,816.85/13,249.11
  6. Step 6: Final answer
    x = 15,187.65

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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.