Home / 15,819.81-23,721.62-5,286.03

Finding the Fourth Proportional to 15,819.81, 23,721.62 and 5,286.03

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Solution

The fourth proportional to 15,819.81, 23,721.62 and 5,286.03 is: 7,926.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.81 : 23,721.62 = 5,286.03 : x
  2. Step 2: Convert to fraction form
    15,819.81/23,721.62 = 5,286.03/x
  3. Step 3: Cross multiply
    15,819.81x = 23,721.62 × 5,286.03
  4. Step 4: Simplify right side
    15,819.81x = 125,393,194.97
  5. Step 5: Solve for x
    x = 125,393,194.97/15,819.81
  6. Step 6: Final answer
    x = 7,926.34

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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.