Home / 11,896.67-16,346.36-11,128.79

Finding the Fourth Proportional to 11,896.67, 16,346.36 and 11,128.79

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Solution

The fourth proportional to 11,896.67, 16,346.36 and 11,128.79 is: 15,291.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,896.67 : 16,346.36 = 11,128.79 : x
  2. Step 2: Convert to fraction form
    11,896.67/16,346.36 = 11,128.79/x
  3. Step 3: Cross multiply
    11,896.67x = 16,346.36 × 11,128.79
  4. Step 4: Simplify right side
    11,896.67x = 181,915,207.70
  5. Step 5: Solve for x
    x = 181,915,207.70/11,896.67
  6. Step 6: Final answer
    x = 15,291.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.