Home / 12,255.75-18,383.67-3,021.75

Finding the Fourth Proportional to 12,255.75, 18,383.67 and 3,021.75

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Solution

The fourth proportional to 12,255.75, 18,383.67 and 3,021.75 is: 4,532.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.75 : 18,383.67 = 3,021.75 : x
  2. Step 2: Convert to fraction form
    12,255.75/18,383.67 = 3,021.75/x
  3. Step 3: Cross multiply
    12,255.75x = 18,383.67 × 3,021.75
  4. Step 4: Simplify right side
    12,255.75x = 55,550,854.82
  5. Step 5: Solve for x
    x = 55,550,854.82/12,255.75
  6. Step 6: Final answer
    x = 4,532.64

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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.