Home / 8,211.92-11,327.85-5,695.52

Finding the Fourth Proportional to 8,211.92, 11,327.85 and 5,695.52

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Solution

The fourth proportional to 8,211.92, 11,327.85 and 5,695.52 is: 7,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.92 : 11,327.85 = 5,695.52 : x
  2. Step 2: Convert to fraction form
    8,211.92/11,327.85 = 5,695.52/x
  3. Step 3: Cross multiply
    8,211.92x = 11,327.85 × 5,695.52
  4. Step 4: Simplify right side
    8,211.92x = 64,517,939.59
  5. Step 5: Solve for x
    x = 64,517,939.59/8,211.92
  6. Step 6: Final answer
    x = 7,856.63

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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.