Home / 19,651.05-27,120.68-11,693.27

Finding the Fourth Proportional to 19,651.05, 27,120.68 and 11,693.27

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Solution

The fourth proportional to 19,651.05, 27,120.68 and 11,693.27 is: 16,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.05 : 27,120.68 = 11,693.27 : x
  2. Step 2: Convert to fraction form
    19,651.05/27,120.68 = 11,693.27/x
  3. Step 3: Cross multiply
    19,651.05x = 27,120.68 × 11,693.27
  4. Step 4: Simplify right side
    19,651.05x = 317,129,533.37
  5. Step 5: Solve for x
    x = 317,129,533.37/19,651.05
  6. Step 6: Final answer
    x = 16,138.05

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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.