Home / 11,923.36-17,881.38-8,249.20

Finding the Fourth Proportional to 11,923.36, 17,881.38 and 8,249.20

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Solution

The fourth proportional to 11,923.36, 17,881.38 and 8,249.20 is: 12,371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.36 : 17,881.38 = 8,249.20 : x
  2. Step 2: Convert to fraction form
    11,923.36/17,881.38 = 8,249.20/x
  3. Step 3: Cross multiply
    11,923.36x = 17,881.38 × 8,249.20
  4. Step 4: Simplify right side
    11,923.36x = 147,507,079.90
  5. Step 5: Solve for x
    x = 147,507,079.90/11,923.36
  6. Step 6: Final answer
    x = 12,371.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.