Home / 8,635.92-11,919.56-5,491.48

Finding the Fourth Proportional to 8,635.92, 11,919.56 and 5,491.48

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Solution

The fourth proportional to 8,635.92, 11,919.56 and 5,491.48 is: 7,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.92 : 11,919.56 = 5,491.48 : x
  2. Step 2: Convert to fraction form
    8,635.92/11,919.56 = 5,491.48/x
  3. Step 3: Cross multiply
    8,635.92x = 11,919.56 × 5,491.48
  4. Step 4: Simplify right side
    8,635.92x = 65,456,025.35
  5. Step 5: Solve for x
    x = 65,456,025.35/8,635.92
  6. Step 6: Final answer
    x = 7,579.51

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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.