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Finding the Fourth Proportional to 18,493.82, 27,738 and 6,804.32

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Solution

The fourth proportional to 18,493.82, 27,738 and 6,804.32 is: 10,205.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.82 : 27,738 = 6,804.32 : x
  2. Step 2: Convert to fraction form
    18,493.82/27,738 = 6,804.32/x
  3. Step 3: Cross multiply
    18,493.82x = 27,738 × 6,804.32
  4. Step 4: Simplify right side
    18,493.82x = 188,738,228.16
  5. Step 5: Solve for x
    x = 188,738,228.16/18,493.82
  6. Step 6: Final answer
    x = 10,205.48

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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.