Home / 3,918-8,250

Finding the Third Proportional to 3,918 and 8,250

Calculator

Solution

The third proportional to 3,918 and 8,250 is: 17,371.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918 : 8,250 = 8,250 : x
  2. Step 2: Convert to fraction form
    3,918/8,250 = 8,250/x
  3. Step 3: Cross multiply
    3,918x = 8,250 × 8,250
  4. Step 4: Simplify right side
    3,918x = 68,062,500
  5. Step 5: Solve for x
    x = 68,062,500/3,918
  6. Step 6: Final answer
    x = 17,371.75

Related Problems

Find third proportional to 1,959 and 4,125
Half scale
Find third proportional to 7,836 and 16,500
Double scale
Find third proportional to 3,920 and 8,254
Similar ratio
Find third proportional to 5,877 and 12,375
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.