Home / 12,719.94-19,076.48-5,322.90

Finding the Fourth Proportional to 12,719.94, 19,076.48 and 5,322.90

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Solution

The fourth proportional to 12,719.94, 19,076.48 and 5,322.90 is: 7,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.94 : 19,076.48 = 5,322.90 : x
  2. Step 2: Convert to fraction form
    12,719.94/19,076.48 = 5,322.90/x
  3. Step 3: Cross multiply
    12,719.94x = 19,076.48 × 5,322.90
  4. Step 4: Simplify right side
    12,719.94x = 101,542,195.39
  5. Step 5: Solve for x
    x = 101,542,195.39/12,719.94
  6. Step 6: Final answer
    x = 7,982.91

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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.