Home / 9,122.82-13,686.05-3,279.88

Finding the Fourth Proportional to 9,122.82, 13,686.05 and 3,279.88

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Solution

The fourth proportional to 9,122.82, 13,686.05 and 3,279.88 is: 4,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.82 : 13,686.05 = 3,279.88 : x
  2. Step 2: Convert to fraction form
    9,122.82/13,686.05 = 3,279.88/x
  3. Step 3: Cross multiply
    9,122.82x = 13,686.05 × 3,279.88
  4. Step 4: Simplify right side
    9,122.82x = 44,888,601.67
  5. Step 5: Solve for x
    x = 44,888,601.67/9,122.82
  6. Step 6: Final answer
    x = 4,920.47

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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.