Home / 11,811.91-16,299.73-6,506.59

Finding the Fourth Proportional to 11,811.91, 16,299.73 and 6,506.59

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Solution

The fourth proportional to 11,811.91, 16,299.73 and 6,506.59 is: 8,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.91 : 16,299.73 = 6,506.59 : x
  2. Step 2: Convert to fraction form
    11,811.91/16,299.73 = 6,506.59/x
  3. Step 3: Cross multiply
    11,811.91x = 16,299.73 × 6,506.59
  4. Step 4: Simplify right side
    11,811.91x = 106,055,660.22
  5. Step 5: Solve for x
    x = 106,055,660.22/11,811.91
  6. Step 6: Final answer
    x = 8,978.71

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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.