Home / 19,716.91-27,205.27-11,331.79

Finding the Fourth Proportional to 19,716.91, 27,205.27 and 11,331.79

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Solution

The fourth proportional to 19,716.91, 27,205.27 and 11,331.79 is: 15,635.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,716.91 : 27,205.27 = 11,331.79 : x
  2. Step 2: Convert to fraction form
    19,716.91/27,205.27 = 11,331.79/x
  3. Step 3: Cross multiply
    19,716.91x = 27,205.27 × 11,331.79
  4. Step 4: Simplify right side
    19,716.91x = 308,284,406.53
  5. Step 5: Solve for x
    x = 308,284,406.53/19,716.91
  6. Step 6: Final answer
    x = 15,635.53

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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.