Home / 13,906.26-19,190.88-7,937.64

Finding the Fourth Proportional to 13,906.26, 19,190.88 and 7,937.64

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Solution

The fourth proportional to 13,906.26, 19,190.88 and 7,937.64 is: 10,954.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.26 : 19,190.88 = 7,937.64 : x
  2. Step 2: Convert to fraction form
    13,906.26/19,190.88 = 7,937.64/x
  3. Step 3: Cross multiply
    13,906.26x = 19,190.88 × 7,937.64
  4. Step 4: Simplify right side
    13,906.26x = 152,330,296.72
  5. Step 5: Solve for x
    x = 152,330,296.72/13,906.26
  6. Step 6: Final answer
    x = 10,954.08

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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.