Home / 12,722.28-19,083.39-3,488.28

Finding the Fourth Proportional to 12,722.28, 19,083.39 and 3,488.28

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Solution

The fourth proportional to 12,722.28, 19,083.39 and 3,488.28 is: 5,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.28 : 19,083.39 = 3,488.28 : x
  2. Step 2: Convert to fraction form
    12,722.28/19,083.39 = 3,488.28/x
  3. Step 3: Cross multiply
    12,722.28x = 19,083.39 × 3,488.28
  4. Step 4: Simplify right side
    12,722.28x = 66,568,207.67
  5. Step 5: Solve for x
    x = 66,568,207.67/12,722.28
  6. Step 6: Final answer
    x = 5,232.41

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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.