Home / 7,636-11,820

Finding the Third Proportional to 7,636 and 11,820

Calculator

Solution

The third proportional to 7,636 and 11,820 is: 18,296.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636 : 11,820 = 11,820 : x
  2. Step 2: Convert to fraction form
    7,636/11,820 = 11,820/x
  3. Step 3: Cross multiply
    7,636x = 11,820 × 11,820
  4. Step 4: Simplify right side
    7,636x = 139,712,400
  5. Step 5: Solve for x
    x = 139,712,400/7,636
  6. Step 6: Final answer
    x = 18,296.54

Related Problems

Find third proportional to 3,818 and 5,910
Half scale
Find third proportional to 15,272 and 23,640
Double scale
Find third proportional to 7,638 and 11,823
Similar ratio
Find third proportional to 11,454 and 17,730
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.