Home / 12,418.50-18,628.67-3,653.80

Finding the Fourth Proportional to 12,418.50, 18,628.67 and 3,653.80

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Solution

The fourth proportional to 12,418.50, 18,628.67 and 3,653.80 is: 5,480.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.50 : 18,628.67 = 3,653.80 : x
  2. Step 2: Convert to fraction form
    12,418.50/18,628.67 = 3,653.80/x
  3. Step 3: Cross multiply
    12,418.50x = 18,628.67 × 3,653.80
  4. Step 4: Simplify right side
    12,418.50x = 68,065,323.03
  5. Step 5: Solve for x
    x = 68,065,323.03/12,418.50
  6. Step 6: Final answer
    x = 5,480.96

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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.