Home / 10,131.42-15,198.64-3,556.44

Finding the Fourth Proportional to 10,131.42, 15,198.64 and 3,556.44

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Solution

The fourth proportional to 10,131.42, 15,198.64 and 3,556.44 is: 5,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.42 : 15,198.64 = 3,556.44 : x
  2. Step 2: Convert to fraction form
    10,131.42/15,198.64 = 3,556.44/x
  3. Step 3: Cross multiply
    10,131.42x = 15,198.64 × 3,556.44
  4. Step 4: Simplify right side
    10,131.42x = 54,053,051.24
  5. Step 5: Solve for x
    x = 54,053,051.24/10,131.42
  6. Step 6: Final answer
    x = 5,335.19

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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.