Home / 12,558-19,458

Finding the Third Proportional to 12,558 and 19,458

Calculator

Solution

The third proportional to 12,558 and 19,458 is: 30,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558 : 19,458 = 19,458 : x
  2. Step 2: Convert to fraction form
    12,558/19,458 = 19,458/x
  3. Step 3: Cross multiply
    12,558x = 19,458 × 19,458
  4. Step 4: Simplify right side
    12,558x = 378,613,764
  5. Step 5: Solve for x
    x = 378,613,764/12,558
  6. Step 6: Final answer
    x = 30,149.21

Related Problems

Find third proportional to 6,279 and 9,729
Half scale
Find third proportional to 25,116 and 38,916
Double scale
Find third proportional to 12,560 and 19,461
Similar ratio
Find third proportional to 18,837 and 29,187
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.