Home / 11,988-18,308

Finding the Third Proportional to 11,988 and 18,308

Calculator

Solution

The third proportional to 11,988 and 18,308 is: 27,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988 : 18,308 = 18,308 : x
  2. Step 2: Convert to fraction form
    11,988/18,308 = 18,308/x
  3. Step 3: Cross multiply
    11,988x = 18,308 × 18,308
  4. Step 4: Simplify right side
    11,988x = 335,182,864
  5. Step 5: Solve for x
    x = 335,182,864/11,988
  6. Step 6: Final answer
    x = 27,959.87

Related Problems

Find third proportional to 5,994 and 9,154
Half scale
Find third proportional to 23,976 and 36,616
Double scale
Find third proportional to 11,990 and 18,311
Similar ratio
Find third proportional to 17,982 and 27,462
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.