Home / 7,765.97-11,640.57-3,812.62

Finding the Fourth Proportional to 7,765.97, 11,640.57 and 3,812.62

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Solution

The fourth proportional to 7,765.97, 11,640.57 and 3,812.62 is: 5,714.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.97 : 11,640.57 = 3,812.62 : x
  2. Step 2: Convert to fraction form
    7,765.97/11,640.57 = 3,812.62/x
  3. Step 3: Cross multiply
    7,765.97x = 11,640.57 × 3,812.62
  4. Step 4: Simplify right side
    7,765.97x = 44,381,069.99
  5. Step 5: Solve for x
    x = 44,381,069.99/7,765.97
  6. Step 6: Final answer
    x = 5,714.81

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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.