Home / 11,761.50-16,226.90-6,722.12

Finding the Fourth Proportional to 11,761.50, 16,226.90 and 6,722.12

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Solution

The fourth proportional to 11,761.50, 16,226.90 and 6,722.12 is: 9,274.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.50 : 16,226.90 = 6,722.12 : x
  2. Step 2: Convert to fraction form
    11,761.50/16,226.90 = 6,722.12/x
  3. Step 3: Cross multiply
    11,761.50x = 16,226.90 × 6,722.12
  4. Step 4: Simplify right side
    11,761.50x = 109,079,201.19
  5. Step 5: Solve for x
    x = 109,079,201.19/11,761.50
  6. Step 6: Final answer
    x = 9,274.26

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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.