Home / 18,219.79-27,331.26-5,072.32

Finding the Fourth Proportional to 18,219.79, 27,331.26 and 5,072.32

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Solution

The fourth proportional to 18,219.79, 27,331.26 and 5,072.32 is: 7,608.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.79 : 27,331.26 = 5,072.32 : x
  2. Step 2: Convert to fraction form
    18,219.79/27,331.26 = 5,072.32/x
  3. Step 3: Cross multiply
    18,219.79x = 27,331.26 × 5,072.32
  4. Step 4: Simplify right side
    18,219.79x = 138,632,896.72
  5. Step 5: Solve for x
    x = 138,632,896.72/18,219.79
  6. Step 6: Final answer
    x = 7,608.92

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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.