Home / 10,129.86-15,194.79-3,556.44

Finding the Fourth Proportional to 10,129.86, 15,194.79 and 3,556.44

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Solution

The fourth proportional to 10,129.86, 15,194.79 and 3,556.44 is: 5,334.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.86 : 15,194.79 = 3,556.44 : x
  2. Step 2: Convert to fraction form
    10,129.86/15,194.79 = 3,556.44/x
  3. Step 3: Cross multiply
    10,129.86x = 15,194.79 × 3,556.44
  4. Step 4: Simplify right side
    10,129.86x = 54,039,358.95
  5. Step 5: Solve for x
    x = 54,039,358.95/10,129.86
  6. Step 6: Final answer
    x = 5,334.66

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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.