Home / 6,945.28-10,414.32-5,480.32

Finding the Fourth Proportional to 6,945.28, 10,414.32 and 5,480.32

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Solution

The fourth proportional to 6,945.28, 10,414.32 and 5,480.32 is: 8,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.28 : 10,414.32 = 5,480.32 : x
  2. Step 2: Convert to fraction form
    6,945.28/10,414.32 = 5,480.32/x
  3. Step 3: Cross multiply
    6,945.28x = 10,414.32 × 5,480.32
  4. Step 4: Simplify right side
    6,945.28x = 57,073,806.18
  5. Step 5: Solve for x
    x = 57,073,806.18/6,945.28
  6. Step 6: Final answer
    x = 8,217.64

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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.