Home / 11,709.27-16,161.80-8,124.48

Finding the Fourth Proportional to 11,709.27, 16,161.80 and 8,124.48

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Solution

The fourth proportional to 11,709.27, 16,161.80 and 8,124.48 is: 11,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.27 : 16,161.80 = 8,124.48 : x
  2. Step 2: Convert to fraction form
    11,709.27/16,161.80 = 8,124.48/x
  3. Step 3: Cross multiply
    11,709.27x = 16,161.80 × 8,124.48
  4. Step 4: Simplify right side
    11,709.27x = 131,306,180.24
  5. Step 5: Solve for x
    x = 131,306,180.24/11,709.27
  6. Step 6: Final answer
    x = 11,213.87

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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.