Home / 10,149.45-15,222.38-2,754.49

Finding the Fourth Proportional to 10,149.45, 15,222.38 and 2,754.49

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Solution

The fourth proportional to 10,149.45, 15,222.38 and 2,754.49 is: 4,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.45 : 15,222.38 = 2,754.49 : x
  2. Step 2: Convert to fraction form
    10,149.45/15,222.38 = 2,754.49/x
  3. Step 3: Cross multiply
    10,149.45x = 15,222.38 × 2,754.49
  4. Step 4: Simplify right side
    10,149.45x = 41,929,852.80
  5. Step 5: Solve for x
    x = 41,929,852.80/10,149.45
  6. Step 6: Final answer
    x = 4,131.24

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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.