Home / 12,119.37-18,179.28-3,799.20

Finding the Fourth Proportional to 12,119.37, 18,179.28 and 3,799.20

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Solution

The fourth proportional to 12,119.37, 18,179.28 and 3,799.20 is: 5,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.37 : 18,179.28 = 3,799.20 : x
  2. Step 2: Convert to fraction form
    12,119.37/18,179.28 = 3,799.20/x
  3. Step 3: Cross multiply
    12,119.37x = 18,179.28 × 3,799.20
  4. Step 4: Simplify right side
    12,119.37x = 69,066,720.58
  5. Step 5: Solve for x
    x = 69,066,720.58/12,119.37
  6. Step 6: Final answer
    x = 5,698.87

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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.