Home / 10,131.32-15,199.77-3,556.64

Finding the Fourth Proportional to 10,131.32, 15,199.77 and 3,556.64

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Solution

The fourth proportional to 10,131.32, 15,199.77 and 3,556.64 is: 5,335.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.32 : 15,199.77 = 3,556.64 : x
  2. Step 2: Convert to fraction form
    10,131.32/15,199.77 = 3,556.64/x
  3. Step 3: Cross multiply
    10,131.32x = 15,199.77 × 3,556.64
  4. Step 4: Simplify right side
    10,131.32x = 54,060,109.97
  5. Step 5: Solve for x
    x = 54,060,109.97/10,131.32
  6. Step 6: Final answer
    x = 5,335.94

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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.