Home / 19,699.13-27,181.08-11,742.09

Finding the Fourth Proportional to 19,699.13, 27,181.08 and 11,742.09

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Solution

The fourth proportional to 19,699.13, 27,181.08 and 11,742.09 is: 16,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.13 : 27,181.08 = 11,742.09 : x
  2. Step 2: Convert to fraction form
    19,699.13/27,181.08 = 11,742.09/x
  3. Step 3: Cross multiply
    19,699.13x = 27,181.08 × 11,742.09
  4. Step 4: Simplify right side
    19,699.13x = 319,162,705.60
  5. Step 5: Solve for x
    x = 319,162,705.60/19,699.13
  6. Step 6: Final answer
    x = 16,201.87

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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.