Home / 11,120.13-16,680.19-2,800.79

Finding the Fourth Proportional to 11,120.13, 16,680.19 and 2,800.79

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Solution

The fourth proportional to 11,120.13, 16,680.19 and 2,800.79 is: 4,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.13 : 16,680.19 = 2,800.79 : x
  2. Step 2: Convert to fraction form
    11,120.13/16,680.19 = 2,800.79/x
  3. Step 3: Cross multiply
    11,120.13x = 16,680.19 × 2,800.79
  4. Step 4: Simplify right side
    11,120.13x = 46,717,722.91
  5. Step 5: Solve for x
    x = 46,717,722.91/11,120.13
  6. Step 6: Final answer
    x = 4,201.19

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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.