Home / 11,220.92-16,830.77-3,429.13

Finding the Fourth Proportional to 11,220.92, 16,830.77 and 3,429.13

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Solution

The fourth proportional to 11,220.92, 16,830.77 and 3,429.13 is: 5,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.92 : 16,830.77 = 3,429.13 : x
  2. Step 2: Convert to fraction form
    11,220.92/16,830.77 = 3,429.13/x
  3. Step 3: Cross multiply
    11,220.92x = 16,830.77 × 3,429.13
  4. Step 4: Simplify right side
    11,220.92x = 57,714,898.33
  5. Step 5: Solve for x
    x = 57,714,898.33/11,220.92
  6. Step 6: Final answer
    x = 5,143.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.