Home / 18,231.08-27,331.43-7,709.18

Finding the Fourth Proportional to 18,231.08, 27,331.43 and 7,709.18

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Solution

The fourth proportional to 18,231.08, 27,331.43 and 7,709.18 is: 11,557.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.08 : 27,331.43 = 7,709.18 : x
  2. Step 2: Convert to fraction form
    18,231.08/27,331.43 = 7,709.18/x
  3. Step 3: Cross multiply
    18,231.08x = 27,331.43 × 7,709.18
  4. Step 4: Simplify right side
    18,231.08x = 210,702,738.32
  5. Step 5: Solve for x
    x = 210,702,738.32/18,231.08
  6. Step 6: Final answer
    x = 11,557.34

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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.