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Finding the Fourth Proportional to 12,181.06, 16,809.96 and 6,804.01

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Solution

The fourth proportional to 12,181.06, 16,809.96 and 6,804.01 is: 9,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.06 : 16,809.96 = 6,804.01 : x
  2. Step 2: Convert to fraction form
    12,181.06/16,809.96 = 6,804.01/x
  3. Step 3: Cross multiply
    12,181.06x = 16,809.96 × 6,804.01
  4. Step 4: Simplify right side
    12,181.06x = 114,375,135.94
  5. Step 5: Solve for x
    x = 114,375,135.94/12,181.06
  6. Step 6: Final answer
    x = 9,389.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.