Home / 19,180.65-28,768.64-5,141.73

Finding the Fourth Proportional to 19,180.65, 28,768.64 and 5,141.73

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Solution

The fourth proportional to 19,180.65, 28,768.64 and 5,141.73 is: 7,711.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.65 : 28,768.64 = 5,141.73 : x
  2. Step 2: Convert to fraction form
    19,180.65/28,768.64 = 5,141.73/x
  3. Step 3: Cross multiply
    19,180.65x = 28,768.64 × 5,141.73
  4. Step 4: Simplify right side
    19,180.65x = 147,920,553.64
  5. Step 5: Solve for x
    x = 147,920,553.64/19,180.65
  6. Step 6: Final answer
    x = 7,711.97

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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.