Home / 9,085.20-13,621.68-3,160.56

Finding the Fourth Proportional to 9,085.20, 13,621.68 and 3,160.56

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Solution

The fourth proportional to 9,085.20, 13,621.68 and 3,160.56 is: 4,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,085.20 : 13,621.68 = 3,160.56 : x
  2. Step 2: Convert to fraction form
    9,085.20/13,621.68 = 3,160.56/x
  3. Step 3: Cross multiply
    9,085.20x = 13,621.68 × 3,160.56
  4. Step 4: Simplify right side
    9,085.20x = 43,052,136.94
  5. Step 5: Solve for x
    x = 43,052,136.94/9,085.20
  6. Step 6: Final answer
    x = 4,738.71

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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.