Home / 8,316.78-12,477.92-3,933.68

Finding the Fourth Proportional to 8,316.78, 12,477.92 and 3,933.68

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Solution

The fourth proportional to 8,316.78, 12,477.92 and 3,933.68 is: 5,901.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.78 : 12,477.92 = 3,933.68 : x
  2. Step 2: Convert to fraction form
    8,316.78/12,477.92 = 3,933.68/x
  3. Step 3: Cross multiply
    8,316.78x = 12,477.92 × 3,933.68
  4. Step 4: Simplify right side
    8,316.78x = 49,084,062.29
  5. Step 5: Solve for x
    x = 49,084,062.29/8,316.78
  6. Step 6: Final answer
    x = 5,901.81

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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.