Home / 12,522-18,990

Finding the Third Proportional to 12,522 and 18,990

Calculator

Solution

The third proportional to 12,522 and 18,990 is: 28,798.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522 : 18,990 = 18,990 : x
  2. Step 2: Convert to fraction form
    12,522/18,990 = 18,990/x
  3. Step 3: Cross multiply
    12,522x = 18,990 × 18,990
  4. Step 4: Simplify right side
    12,522x = 360,620,100
  5. Step 5: Solve for x
    x = 360,620,100/12,522
  6. Step 6: Final answer
    x = 28,798.92

Related Problems

Find third proportional to 6,261 and 9,495
Half scale
Find third proportional to 25,044 and 37,980
Double scale
Find third proportional to 12,524 and 18,993
Similar ratio
Find third proportional to 18,783 and 28,485
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.