Home / 11,105.99-15,324.84-6,326.54

Finding the Fourth Proportional to 11,105.99, 15,324.84 and 6,326.54

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Solution

The fourth proportional to 11,105.99, 15,324.84 and 6,326.54 is: 8,729.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.99 : 15,324.84 = 6,326.54 : x
  2. Step 2: Convert to fraction form
    11,105.99/15,324.84 = 6,326.54/x
  3. Step 3: Cross multiply
    11,105.99x = 15,324.84 × 6,326.54
  4. Step 4: Simplify right side
    11,105.99x = 96,953,136.63
  5. Step 5: Solve for x
    x = 96,953,136.63/11,105.99
  6. Step 6: Final answer
    x = 8,729.81

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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.