Home / 8,921.46-13,379.40-3,076.77

Finding the Fourth Proportional to 8,921.46, 13,379.40 and 3,076.77

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Solution

The fourth proportional to 8,921.46, 13,379.40 and 3,076.77 is: 4,614.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.46 : 13,379.40 = 3,076.77 : x
  2. Step 2: Convert to fraction form
    8,921.46/13,379.40 = 3,076.77/x
  3. Step 3: Cross multiply
    8,921.46x = 13,379.40 × 3,076.77
  4. Step 4: Simplify right side
    8,921.46x = 41,165,336.54
  5. Step 5: Solve for x
    x = 41,165,336.54/8,921.46
  6. Step 6: Final answer
    x = 4,614.19

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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.