Home / 11,640.92-16,083.29-8,119.85

Finding the Fourth Proportional to 11,640.92, 16,083.29 and 8,119.85

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Solution

The fourth proportional to 11,640.92, 16,083.29 and 8,119.85 is: 11,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.92 : 16,083.29 = 8,119.85 : x
  2. Step 2: Convert to fraction form
    11,640.92/16,083.29 = 8,119.85/x
  3. Step 3: Cross multiply
    11,640.92x = 16,083.29 × 8,119.85
  4. Step 4: Simplify right side
    11,640.92x = 130,593,962.81
  5. Step 5: Solve for x
    x = 130,593,962.81/11,640.92
  6. Step 6: Final answer
    x = 11,218.52

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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.