Home / 12,012.26-18,019.35-4,222.82

Finding the Fourth Proportional to 12,012.26, 18,019.35 and 4,222.82

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Solution

The fourth proportional to 12,012.26, 18,019.35 and 4,222.82 is: 6,334.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.26 : 18,019.35 = 4,222.82 : x
  2. Step 2: Convert to fraction form
    12,012.26/18,019.35 = 4,222.82/x
  3. Step 3: Cross multiply
    12,012.26x = 18,019.35 × 4,222.82
  4. Step 4: Simplify right side
    12,012.26x = 76,092,471.57
  5. Step 5: Solve for x
    x = 76,092,471.57/12,012.26
  6. Step 6: Final answer
    x = 6,334.57

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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.