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Finding the Fourth Proportional to 8,322.68, 11,480.03 and 6,328.87

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Solution

The fourth proportional to 8,322.68, 11,480.03 and 6,328.87 is: 8,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.68 : 11,480.03 = 6,328.87 : x
  2. Step 2: Convert to fraction form
    8,322.68/11,480.03 = 6,328.87/x
  3. Step 3: Cross multiply
    8,322.68x = 11,480.03 × 6,328.87
  4. Step 4: Simplify right side
    8,322.68x = 72,655,580.85
  5. Step 5: Solve for x
    x = 72,655,580.85/8,322.68
  6. Step 6: Final answer
    x = 8,729.83

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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.