Home / 8,964.58-13,446.92-3,121.18

Finding the Fourth Proportional to 8,964.58, 13,446.92 and 3,121.18

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Solution

The fourth proportional to 8,964.58, 13,446.92 and 3,121.18 is: 4,681.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.58 : 13,446.92 = 3,121.18 : x
  2. Step 2: Convert to fraction form
    8,964.58/13,446.92 = 3,121.18/x
  3. Step 3: Cross multiply
    8,964.58x = 13,446.92 × 3,121.18
  4. Step 4: Simplify right side
    8,964.58x = 41,970,257.77
  5. Step 5: Solve for x
    x = 41,970,257.77/8,964.58
  6. Step 6: Final answer
    x = 4,681.79

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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.