Home / 15,819.78-23,710.62-5,816.54

Finding the Fourth Proportional to 15,819.78, 23,710.62 and 5,816.54

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Solution

The fourth proportional to 15,819.78, 23,710.62 and 5,816.54 is: 8,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.78 : 23,710.62 = 5,816.54 : x
  2. Step 2: Convert to fraction form
    15,819.78/23,710.62 = 5,816.54/x
  3. Step 3: Cross multiply
    15,819.78x = 23,710.62 × 5,816.54
  4. Step 4: Simplify right side
    15,819.78x = 137,913,769.65
  5. Step 5: Solve for x
    x = 137,913,769.65/15,819.78
  6. Step 6: Final answer
    x = 8,717.81

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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.