Home / 18,129.48-27,198.54-7,036.44

Finding the Fourth Proportional to 18,129.48, 27,198.54 and 7,036.44

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Solution

The fourth proportional to 18,129.48, 27,198.54 and 7,036.44 is: 10,556.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.48 : 27,198.54 = 7,036.44 : x
  2. Step 2: Convert to fraction form
    18,129.48/27,198.54 = 7,036.44/x
  3. Step 3: Cross multiply
    18,129.48x = 27,198.54 × 7,036.44
  4. Step 4: Simplify right side
    18,129.48x = 191,380,894.80
  5. Step 5: Solve for x
    x = 191,380,894.80/18,129.48
  6. Step 6: Final answer
    x = 10,556.34

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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.