Home / 18,189.44-27,284.67-5,042.78

Finding the Fourth Proportional to 18,189.44, 27,284.67 and 5,042.78

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Solution

The fourth proportional to 18,189.44, 27,284.67 and 5,042.78 is: 7,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.44 : 27,284.67 = 5,042.78 : x
  2. Step 2: Convert to fraction form
    18,189.44/27,284.67 = 5,042.78/x
  3. Step 3: Cross multiply
    18,189.44x = 27,284.67 × 5,042.78
  4. Step 4: Simplify right side
    18,189.44x = 137,590,588.18
  5. Step 5: Solve for x
    x = 137,590,588.18/18,189.44
  6. Step 6: Final answer
    x = 7,564.31

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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.