Home / 15,571.62-21,499.97-9,611.37

Finding the Fourth Proportional to 15,571.62, 21,499.97 and 9,611.37

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Solution

The fourth proportional to 15,571.62, 21,499.97 and 9,611.37 is: 13,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.62 : 21,499.97 = 9,611.37 : x
  2. Step 2: Convert to fraction form
    15,571.62/21,499.97 = 9,611.37/x
  3. Step 3: Cross multiply
    15,571.62x = 21,499.97 × 9,611.37
  4. Step 4: Simplify right side
    15,571.62x = 206,644,118.60
  5. Step 5: Solve for x
    x = 206,644,118.60/15,571.62
  6. Step 6: Final answer
    x = 13,270.56

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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.