Home / 11,861.72-16,369.26-6,556.70

Finding the Fourth Proportional to 11,861.72, 16,369.26 and 6,556.70

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Solution

The fourth proportional to 11,861.72, 16,369.26 and 6,556.70 is: 9,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.72 : 16,369.26 = 6,556.70 : x
  2. Step 2: Convert to fraction form
    11,861.72/16,369.26 = 6,556.70/x
  3. Step 3: Cross multiply
    11,861.72x = 16,369.26 × 6,556.70
  4. Step 4: Simplify right side
    11,861.72x = 107,328,245.20
  5. Step 5: Solve for x
    x = 107,328,245.20/11,861.72
  6. Step 6: Final answer
    x = 9,048.29

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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.