Home / 13,249.15-18,279.84-7,942.03

Finding the Fourth Proportional to 13,249.15, 18,279.84 and 7,942.03

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Solution

The fourth proportional to 13,249.15, 18,279.84 and 7,942.03 is: 10,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.15 : 18,279.84 = 7,942.03 : x
  2. Step 2: Convert to fraction form
    13,249.15/18,279.84 = 7,942.03/x
  3. Step 3: Cross multiply
    13,249.15x = 18,279.84 × 7,942.03
  4. Step 4: Simplify right side
    13,249.15x = 145,179,037.68
  5. Step 5: Solve for x
    x = 145,179,037.68/13,249.15
  6. Step 6: Final answer
    x = 10,957.61

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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.