Home / 12,822-18,729

Finding the Third Proportional to 12,822 and 18,729

Calculator

Solution

The third proportional to 12,822 and 18,729 is: 27,357.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822 : 18,729 = 18,729 : x
  2. Step 2: Convert to fraction form
    12,822/18,729 = 18,729/x
  3. Step 3: Cross multiply
    12,822x = 18,729 × 18,729
  4. Step 4: Simplify right side
    12,822x = 350,775,441
  5. Step 5: Solve for x
    x = 350,775,441/12,822
  6. Step 6: Final answer
    x = 27,357.31

Related Problems

Find third proportional to 6,411 and 9,364.50
Half scale
Find third proportional to 25,644 and 37,458
Double scale
Find third proportional to 12,824 and 18,732
Similar ratio
Find third proportional to 19,233 and 28,093.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.