Home / 11,172.72-16,758.96-4,247.22

Finding the Fourth Proportional to 11,172.72, 16,758.96 and 4,247.22

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Solution

The fourth proportional to 11,172.72, 16,758.96 and 4,247.22 is: 6,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.72 : 16,758.96 = 4,247.22 : x
  2. Step 2: Convert to fraction form
    11,172.72/16,758.96 = 4,247.22/x
  3. Step 3: Cross multiply
    11,172.72x = 16,758.96 × 4,247.22
  4. Step 4: Simplify right side
    11,172.72x = 71,178,990.09
  5. Step 5: Solve for x
    x = 71,178,990.09/11,172.72
  6. Step 6: Final answer
    x = 6,370.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.