Home / 9,120-11,898

Finding the Third Proportional to 9,120 and 11,898

Calculator

Solution

The third proportional to 9,120 and 11,898 is: 15,522.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120 : 11,898 = 11,898 : x
  2. Step 2: Convert to fraction form
    9,120/11,898 = 11,898/x
  3. Step 3: Cross multiply
    9,120x = 11,898 × 11,898
  4. Step 4: Simplify right side
    9,120x = 141,562,404
  5. Step 5: Solve for x
    x = 141,562,404/9,120
  6. Step 6: Final answer
    x = 15,522.19

Related Problems

Find third proportional to 4,560 and 5,949
Half scale
Find third proportional to 18,240 and 23,796
Double scale
Find third proportional to 9,122 and 11,901
Similar ratio
Find third proportional to 13,680 and 17,847
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.