Home / 12,215.26-18,323.30-3,450.12

Finding the Fourth Proportional to 12,215.26, 18,323.30 and 3,450.12

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Solution

The fourth proportional to 12,215.26, 18,323.30 and 3,450.12 is: 5,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.26 : 18,323.30 = 3,450.12 : x
  2. Step 2: Convert to fraction form
    12,215.26/18,323.30 = 3,450.12/x
  3. Step 3: Cross multiply
    12,215.26x = 18,323.30 × 3,450.12
  4. Step 4: Simplify right side
    12,215.26x = 63,217,583.80
  5. Step 5: Solve for x
    x = 63,217,583.80/12,215.26
  6. Step 6: Final answer
    x = 5,175.30

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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.