Home / 13,611.73-20,425.50-5,297.49

Finding the Fourth Proportional to 13,611.73, 20,425.50 and 5,297.49

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Solution

The fourth proportional to 13,611.73, 20,425.50 and 5,297.49 is: 7,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.73 : 20,425.50 = 5,297.49 : x
  2. Step 2: Convert to fraction form
    13,611.73/20,425.50 = 5,297.49/x
  3. Step 3: Cross multiply
    13,611.73x = 20,425.50 × 5,297.49
  4. Step 4: Simplify right side
    13,611.73x = 108,203,882.00
  5. Step 5: Solve for x
    x = 108,203,882.00/13,611.73
  6. Step 6: Final answer
    x = 7,949.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.