Home / 10,965.20-16,450.22-5,118.62

Finding the Fourth Proportional to 10,965.20, 16,450.22 and 5,118.62

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Solution

The fourth proportional to 10,965.20, 16,450.22 and 5,118.62 is: 7,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.20 : 16,450.22 = 5,118.62 : x
  2. Step 2: Convert to fraction form
    10,965.20/16,450.22 = 5,118.62/x
  3. Step 3: Cross multiply
    10,965.20x = 16,450.22 × 5,118.62
  4. Step 4: Simplify right side
    10,965.20x = 84,202,425.10
  5. Step 5: Solve for x
    x = 84,202,425.10/10,965.20
  6. Step 6: Final answer
    x = 7,679.06

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1.5x scale

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.