Home / 13,704.11-18,911.27-7,736.33

Finding the Fourth Proportional to 13,704.11, 18,911.27 and 7,736.33

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Solution

The fourth proportional to 13,704.11, 18,911.27 and 7,736.33 is: 10,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.11 : 18,911.27 = 7,736.33 : x
  2. Step 2: Convert to fraction form
    13,704.11/18,911.27 = 7,736.33/x
  3. Step 3: Cross multiply
    13,704.11x = 18,911.27 × 7,736.33
  4. Step 4: Simplify right side
    13,704.11x = 146,303,825.44
  5. Step 5: Solve for x
    x = 146,303,825.44/13,704.11
  6. Step 6: Final answer
    x = 10,675.91

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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.