Home / 8,372-19,805

Finding the Third Proportional to 8,372 and 19,805

Calculator

Solution

The third proportional to 8,372 and 19,805 is: 46,851.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372 : 19,805 = 19,805 : x
  2. Step 2: Convert to fraction form
    8,372/19,805 = 19,805/x
  3. Step 3: Cross multiply
    8,372x = 19,805 × 19,805
  4. Step 4: Simplify right side
    8,372x = 392,238,025
  5. Step 5: Solve for x
    x = 392,238,025/8,372
  6. Step 6: Final answer
    x = 46,851.17

Related Problems

Find third proportional to 4,186 and 9,902.50
Half scale
Find third proportional to 16,744 and 39,610
Double scale
Find third proportional to 8,374 and 19,810
Similar ratio
Find third proportional to 12,558 and 29,707.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.