Home / 12,019.88-18,028.19-3,586.26

Finding the Fourth Proportional to 12,019.88, 18,028.19 and 3,586.26

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Solution

The fourth proportional to 12,019.88, 18,028.19 and 3,586.26 is: 5,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.88 : 18,028.19 = 3,586.26 : x
  2. Step 2: Convert to fraction form
    12,019.88/18,028.19 = 3,586.26/x
  3. Step 3: Cross multiply
    12,019.88x = 18,028.19 × 3,586.26
  4. Step 4: Simplify right side
    12,019.88x = 64,653,758.74
  5. Step 5: Solve for x
    x = 64,653,758.74/12,019.88
  6. Step 6: Final answer
    x = 5,378.90

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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.