Home / 13,858.22-20,789.37-5,092.45

Finding the Fourth Proportional to 13,858.22, 20,789.37 and 5,092.45

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Solution

The fourth proportional to 13,858.22, 20,789.37 and 5,092.45 is: 7,639.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.22 : 20,789.37 = 5,092.45 : x
  2. Step 2: Convert to fraction form
    13,858.22/20,789.37 = 5,092.45/x
  3. Step 3: Cross multiply
    13,858.22x = 20,789.37 × 5,092.45
  4. Step 4: Simplify right side
    13,858.22x = 105,868,775.28
  5. Step 5: Solve for x
    x = 105,868,775.28/13,858.22
  6. Step 6: Final answer
    x = 7,639.42

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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.