Home / 8,821.72-13,228.73-2,581.61

Finding the Fourth Proportional to 8,821.72, 13,228.73 and 2,581.61

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Solution

The fourth proportional to 8,821.72, 13,228.73 and 2,581.61 is: 3,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.72 : 13,228.73 = 2,581.61 : x
  2. Step 2: Convert to fraction form
    8,821.72/13,228.73 = 2,581.61/x
  3. Step 3: Cross multiply
    8,821.72x = 13,228.73 × 2,581.61
  4. Step 4: Simplify right side
    8,821.72x = 34,151,352.28
  5. Step 5: Solve for x
    x = 34,151,352.28/8,821.72
  6. Step 6: Final answer
    x = 3,871.28

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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.