Home / 13,951.88-21,023.73-11,540.71

Finding the Fourth Proportional to 13,951.88, 21,023.73 and 11,540.71

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Solution

The fourth proportional to 13,951.88, 21,023.73 and 11,540.71 is: 17,390.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.88 : 21,023.73 = 11,540.71 : x
  2. Step 2: Convert to fraction form
    13,951.88/21,023.73 = 11,540.71/x
  3. Step 3: Cross multiply
    13,951.88x = 21,023.73 × 11,540.71
  4. Step 4: Simplify right side
    13,951.88x = 242,628,608.23
  5. Step 5: Solve for x
    x = 242,628,608.23/13,951.88
  6. Step 6: Final answer
    x = 17,390.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.