Home / 20,198.03-27,869.05-11,699.64

Finding the Fourth Proportional to 20,198.03, 27,869.05 and 11,699.64

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Solution

The fourth proportional to 20,198.03, 27,869.05 and 11,699.64 is: 16,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.03 : 27,869.05 = 11,699.64 : x
  2. Step 2: Convert to fraction form
    20,198.03/27,869.05 = 11,699.64/x
  3. Step 3: Cross multiply
    20,198.03x = 27,869.05 × 11,699.64
  4. Step 4: Simplify right side
    20,198.03x = 326,057,852.14
  5. Step 5: Solve for x
    x = 326,057,852.14/20,198.03
  6. Step 6: Final answer
    x = 16,143.05

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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.