Home / 8,871.29-13,309.68-2,631.33

Finding the Fourth Proportional to 8,871.29, 13,309.68 and 2,631.33

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Solution

The fourth proportional to 8,871.29, 13,309.68 and 2,631.33 is: 3,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.29 : 13,309.68 = 2,631.33 : x
  2. Step 2: Convert to fraction form
    8,871.29/13,309.68 = 2,631.33/x
  3. Step 3: Cross multiply
    8,871.29x = 13,309.68 × 2,631.33
  4. Step 4: Simplify right side
    8,871.29x = 35,022,160.27
  5. Step 5: Solve for x
    x = 35,022,160.27/8,871.29
  6. Step 6: Final answer
    x = 3,947.81

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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.