Home / 12,786.27-19,179.42-5,860.77

Finding the Fourth Proportional to 12,786.27, 19,179.42 and 5,860.77

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Solution

The fourth proportional to 12,786.27, 19,179.42 and 5,860.77 is: 8,791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786.27 : 19,179.42 = 5,860.77 : x
  2. Step 2: Convert to fraction form
    12,786.27/19,179.42 = 5,860.77/x
  3. Step 3: Cross multiply
    12,786.27x = 19,179.42 × 5,860.77
  4. Step 4: Simplify right side
    12,786.27x = 112,406,169.35
  5. Step 5: Solve for x
    x = 112,406,169.35/12,786.27
  6. Step 6: Final answer
    x = 8,791.16

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Similar ratio
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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.