Home / 18,378.36-27,542.94-9,004.03

Finding the Fourth Proportional to 18,378.36, 27,542.94 and 9,004.03

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Solution

The fourth proportional to 18,378.36, 27,542.94 and 9,004.03 is: 13,493.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.36 : 27,542.94 = 9,004.03 : x
  2. Step 2: Convert to fraction form
    18,378.36/27,542.94 = 9,004.03/x
  3. Step 3: Cross multiply
    18,378.36x = 27,542.94 × 9,004.03
  4. Step 4: Simplify right side
    18,378.36x = 247,997,458.05
  5. Step 5: Solve for x
    x = 247,997,458.05/18,378.36
  6. Step 6: Final answer
    x = 13,493.99

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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.