Home / 8,921.29-13,382.85-3,076.54

Finding the Fourth Proportional to 8,921.29, 13,382.85 and 3,076.54

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Solution

The fourth proportional to 8,921.29, 13,382.85 and 3,076.54 is: 4,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.29 : 13,382.85 = 3,076.54 : x
  2. Step 2: Convert to fraction form
    8,921.29/13,382.85 = 3,076.54/x
  3. Step 3: Cross multiply
    8,921.29x = 13,382.85 × 3,076.54
  4. Step 4: Simplify right side
    8,921.29x = 41,172,873.34
  5. Step 5: Solve for x
    x = 41,172,873.34/8,921.29
  6. Step 6: Final answer
    x = 4,615.13

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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.