Home / 9,131.45-13,692.92-3,287.30

Finding the Fourth Proportional to 9,131.45, 13,692.92 and 3,287.30

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Solution

The fourth proportional to 9,131.45, 13,692.92 and 3,287.30 is: 4,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.45 : 13,692.92 = 3,287.30 : x
  2. Step 2: Convert to fraction form
    9,131.45/13,692.92 = 3,287.30/x
  3. Step 3: Cross multiply
    9,131.45x = 13,692.92 × 3,287.30
  4. Step 4: Simplify right side
    9,131.45x = 45,012,735.92
  5. Step 5: Solve for x
    x = 45,012,735.92/9,131.45
  6. Step 6: Final answer
    x = 4,929.42

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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.