Home / 12,684.27-19,028.79-3,917.13

Finding the Fourth Proportional to 12,684.27, 19,028.79 and 3,917.13

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Solution

The fourth proportional to 12,684.27, 19,028.79 and 3,917.13 is: 5,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.27 : 19,028.79 = 3,917.13 : x
  2. Step 2: Convert to fraction form
    12,684.27/19,028.79 = 3,917.13/x
  3. Step 3: Cross multiply
    12,684.27x = 19,028.79 × 3,917.13
  4. Step 4: Simplify right side
    12,684.27x = 74,538,244.17
  5. Step 5: Solve for x
    x = 74,538,244.17/12,684.27
  6. Step 6: Final answer
    x = 5,876.43

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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.