Home / 12,682.32-19,025.22-3,917.88

Finding the Fourth Proportional to 12,682.32, 19,025.22 and 3,917.88

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Solution

The fourth proportional to 12,682.32, 19,025.22 and 3,917.88 is: 5,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.32 : 19,025.22 = 3,917.88 : x
  2. Step 2: Convert to fraction form
    12,682.32/19,025.22 = 3,917.88/x
  3. Step 3: Cross multiply
    12,682.32x = 19,025.22 × 3,917.88
  4. Step 4: Simplify right side
    12,682.32x = 74,538,528.93
  5. Step 5: Solve for x
    x = 74,538,528.93/12,682.32
  6. Step 6: Final answer
    x = 5,877.36

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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.