Home / 19,141.17-28,694.75-7,451.66

Finding the Fourth Proportional to 19,141.17, 28,694.75 and 7,451.66

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Solution

The fourth proportional to 19,141.17, 28,694.75 and 7,451.66 is: 11,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.17 : 28,694.75 = 7,451.66 : x
  2. Step 2: Convert to fraction form
    19,141.17/28,694.75 = 7,451.66/x
  3. Step 3: Cross multiply
    19,141.17x = 28,694.75 × 7,451.66
  4. Step 4: Simplify right side
    19,141.17x = 213,823,340.05
  5. Step 5: Solve for x
    x = 213,823,340.05/19,141.17
  6. Step 6: Final answer
    x = 11,170.86

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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.