Home / 18,611.37-27,908.23-7,218.62

Finding the Fourth Proportional to 18,611.37, 27,908.23 and 7,218.62

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Solution

The fourth proportional to 18,611.37, 27,908.23 and 7,218.62 is: 10,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.37 : 27,908.23 = 7,218.62 : x
  2. Step 2: Convert to fraction form
    18,611.37/27,908.23 = 7,218.62/x
  3. Step 3: Cross multiply
    18,611.37x = 27,908.23 × 7,218.62
  4. Step 4: Simplify right side
    18,611.37x = 201,458,907.24
  5. Step 5: Solve for x
    x = 201,458,907.24/18,611.37
  6. Step 6: Final answer
    x = 10,824.51

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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.