Finding the Third Proportional to 12,428 and 18,966
Calculator
Solution
The third proportional to 12,428 and 18,966 is: 28,943.45
Step by Step Solution
- Step 1: Write the proportion equation
12,428 : 18,966 = 18,966 : x - Step 2: Convert to fraction form
12,428/18,966 = 18,966/x - Step 3: Cross multiply
12,428x = 18,966 × 18,966 - Step 4: Simplify right side
12,428x = 359,709,156 - Step 5: Solve for x
x = 359,709,156/12,428 - Step 6: Final answer
x = 28,943.45
Related Problems
Find third proportional to 6,214 and 9,483
Half scale
Find third proportional to 24,856 and 37,932
Double scale
Find third proportional to 12,430 and 18,969
Similar ratio
Find third proportional to 18,642 and 28,449
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.