Home / 15,055.44-20,786.88-11,512.48

Finding the Fourth Proportional to 15,055.44, 20,786.88 and 11,512.48

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Solution

The fourth proportional to 15,055.44, 20,786.88 and 11,512.48 is: 15,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.44 : 20,786.88 = 11,512.48 : x
  2. Step 2: Convert to fraction form
    15,055.44/20,786.88 = 11,512.48/x
  3. Step 3: Cross multiply
    15,055.44x = 20,786.88 × 11,512.48
  4. Step 4: Simplify right side
    15,055.44x = 239,308,540.26
  5. Step 5: Solve for x
    x = 239,308,540.26/15,055.44
  6. Step 6: Final answer
    x = 15,895.15

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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.