Home / 18,090.06-27,145.80-10,091.56

Finding the Fourth Proportional to 18,090.06, 27,145.80 and 10,091.56

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Solution

The fourth proportional to 18,090.06, 27,145.80 and 10,091.56 is: 15,143.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.06 : 27,145.80 = 10,091.56 : x
  2. Step 2: Convert to fraction form
    18,090.06/27,145.80 = 10,091.56/x
  3. Step 3: Cross multiply
    18,090.06x = 27,145.80 × 10,091.56
  4. Step 4: Simplify right side
    18,090.06x = 273,943,469.45
  5. Step 5: Solve for x
    x = 273,943,469.45/18,090.06
  6. Step 6: Final answer
    x = 15,143.31

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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.