Home / 11,491.27-15,856.69-6,454.33

Finding the Fourth Proportional to 11,491.27, 15,856.69 and 6,454.33

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Solution

The fourth proportional to 11,491.27, 15,856.69 and 6,454.33 is: 8,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.27 : 15,856.69 = 6,454.33 : x
  2. Step 2: Convert to fraction form
    11,491.27/15,856.69 = 6,454.33/x
  3. Step 3: Cross multiply
    11,491.27x = 15,856.69 × 6,454.33
  4. Step 4: Simplify right side
    11,491.27x = 102,344,309.97
  5. Step 5: Solve for x
    x = 102,344,309.97/11,491.27
  6. Step 6: Final answer
    x = 8,906.27

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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.