Home / 18,656.28-25,743.83-11,100.33

Finding the Fourth Proportional to 18,656.28, 25,743.83 and 11,100.33

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Solution

The fourth proportional to 18,656.28, 25,743.83 and 11,100.33 is: 15,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.28 : 25,743.83 = 11,100.33 : x
  2. Step 2: Convert to fraction form
    18,656.28/25,743.83 = 11,100.33/x
  3. Step 3: Cross multiply
    18,656.28x = 25,743.83 × 11,100.33
  4. Step 4: Simplify right side
    18,656.28x = 285,764,952.96
  5. Step 5: Solve for x
    x = 285,764,952.96/18,656.28
  6. Step 6: Final answer
    x = 15,317.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.