Home / 19,727.19-27,231.08-12,174.75

Finding the Fourth Proportional to 19,727.19, 27,231.08 and 12,174.75

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Solution

The fourth proportional to 19,727.19, 27,231.08 and 12,174.75 is: 16,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,727.19 : 27,231.08 = 12,174.75 : x
  2. Step 2: Convert to fraction form
    19,727.19/27,231.08 = 12,174.75/x
  3. Step 3: Cross multiply
    19,727.19x = 27,231.08 × 12,174.75
  4. Step 4: Simplify right side
    19,727.19x = 331,531,530.36
  5. Step 5: Solve for x
    x = 331,531,530.36/19,727.19
  6. Step 6: Final answer
    x = 16,805.82

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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.