Home / 9,156-21,198

Finding the Third Proportional to 9,156 and 21,198

Calculator

Solution

The third proportional to 9,156 and 21,198 is: 49,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156 : 21,198 = 21,198 : x
  2. Step 2: Convert to fraction form
    9,156/21,198 = 21,198/x
  3. Step 3: Cross multiply
    9,156x = 21,198 × 21,198
  4. Step 4: Simplify right side
    9,156x = 449,355,204
  5. Step 5: Solve for x
    x = 449,355,204/9,156
  6. Step 6: Final answer
    x = 49,077.68

Related Problems

Find third proportional to 4,578 and 10,599
Half scale
Find third proportional to 18,312 and 42,396
Double scale
Find third proportional to 9,158 and 21,203
Similar ratio
Find third proportional to 13,734 and 31,797
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.