Home / 19,456.80-26,850.66-11,388.60

Finding the Fourth Proportional to 19,456.80, 26,850.66 and 11,388.60

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Solution

The fourth proportional to 19,456.80, 26,850.66 and 11,388.60 is: 15,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,456.80 : 26,850.66 = 11,388.60 : x
  2. Step 2: Convert to fraction form
    19,456.80/26,850.66 = 11,388.60/x
  3. Step 3: Cross multiply
    19,456.80x = 26,850.66 × 11,388.60
  4. Step 4: Simplify right side
    19,456.80x = 305,791,426.48
  5. Step 5: Solve for x
    x = 305,791,426.48/19,456.80
  6. Step 6: Final answer
    x = 15,716.43

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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.