Home / 7,748-11,855

Finding the Third Proportional to 7,748 and 11,855

Calculator

Solution

The third proportional to 7,748 and 11,855 is: 18,139.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748 : 11,855 = 11,855 : x
  2. Step 2: Convert to fraction form
    7,748/11,855 = 11,855/x
  3. Step 3: Cross multiply
    7,748x = 11,855 × 11,855
  4. Step 4: Simplify right side
    7,748x = 140,541,025
  5. Step 5: Solve for x
    x = 140,541,025/7,748
  6. Step 6: Final answer
    x = 18,139.01

Related Problems

Find third proportional to 3,874 and 5,927.50
Half scale
Find third proportional to 15,496 and 23,710
Double scale
Find third proportional to 7,750 and 11,858
Similar ratio
Find third proportional to 11,622 and 17,782.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.