Home / 11,434.36-17,139.90-5,198.80

Finding the Fourth Proportional to 11,434.36, 17,139.90 and 5,198.80

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Solution

The fourth proportional to 11,434.36, 17,139.90 and 5,198.80 is: 7,792.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.36 : 17,139.90 = 5,198.80 : x
  2. Step 2: Convert to fraction form
    11,434.36/17,139.90 = 5,198.80/x
  3. Step 3: Cross multiply
    11,434.36x = 17,139.90 × 5,198.80
  4. Step 4: Simplify right side
    11,434.36x = 89,106,912.12
  5. Step 5: Solve for x
    x = 89,106,912.12/11,434.36
  6. Step 6: Final answer
    x = 7,792.91

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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.