Home / 18,382.36-27,561.68-7,859.24

Finding the Fourth Proportional to 18,382.36, 27,561.68 and 7,859.24

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Solution

The fourth proportional to 18,382.36, 27,561.68 and 7,859.24 is: 11,783.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.36 : 27,561.68 = 7,859.24 : x
  2. Step 2: Convert to fraction form
    18,382.36/27,561.68 = 7,859.24/x
  3. Step 3: Cross multiply
    18,382.36x = 27,561.68 × 7,859.24
  4. Step 4: Simplify right side
    18,382.36x = 216,613,857.92
  5. Step 5: Solve for x
    x = 216,613,857.92/18,382.36
  6. Step 6: Final answer
    x = 11,783.79

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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.