Home / 12,908-18,984

Finding the Third Proportional to 12,908 and 18,984

Calculator

Solution

The third proportional to 12,908 and 18,984 is: 27,920.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908 : 18,984 = 18,984 : x
  2. Step 2: Convert to fraction form
    12,908/18,984 = 18,984/x
  3. Step 3: Cross multiply
    12,908x = 18,984 × 18,984
  4. Step 4: Simplify right side
    12,908x = 360,392,256
  5. Step 5: Solve for x
    x = 360,392,256/12,908
  6. Step 6: Final answer
    x = 27,920.07

Related Problems

Find third proportional to 6,454 and 9,492
Half scale
Find third proportional to 25,816 and 37,968
Double scale
Find third proportional to 12,910 and 18,987
Similar ratio
Find third proportional to 19,362 and 28,476
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.