Home / 9,229.28-12,742-6,245.60

Finding the Fourth Proportional to 9,229.28, 12,742 and 6,245.60

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Solution

The fourth proportional to 9,229.28, 12,742 and 6,245.60 is: 8,622.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,229.28 : 12,742 = 6,245.60 : x
  2. Step 2: Convert to fraction form
    9,229.28/12,742 = 6,245.60/x
  3. Step 3: Cross multiply
    9,229.28x = 12,742 × 6,245.60
  4. Step 4: Simplify right side
    9,229.28x = 79,581,435.20
  5. Step 5: Solve for x
    x = 79,581,435.20/9,229.28
  6. Step 6: Final answer
    x = 8,622.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.