Home / 8,311.39-11,471.21-4,954.43

Finding the Fourth Proportional to 8,311.39, 11,471.21 and 4,954.43

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Solution

The fourth proportional to 8,311.39, 11,471.21 and 4,954.43 is: 6,837.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.39 : 11,471.21 = 4,954.43 : x
  2. Step 2: Convert to fraction form
    8,311.39/11,471.21 = 4,954.43/x
  3. Step 3: Cross multiply
    8,311.39x = 11,471.21 × 4,954.43
  4. Step 4: Simplify right side
    8,311.39x = 56,833,243.41
  5. Step 5: Solve for x
    x = 56,833,243.41/8,311.39
  6. Step 6: Final answer
    x = 6,837.99

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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.