Home / 15,858-19,206

Finding the Third Proportional to 15,858 and 19,206

Calculator

Solution

The third proportional to 15,858 and 19,206 is: 23,260.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858 : 19,206 = 19,206 : x
  2. Step 2: Convert to fraction form
    15,858/19,206 = 19,206/x
  3. Step 3: Cross multiply
    15,858x = 19,206 × 19,206
  4. Step 4: Simplify right side
    15,858x = 368,870,436
  5. Step 5: Solve for x
    x = 368,870,436/15,858
  6. Step 6: Final answer
    x = 23,260.84

Related Problems

Find third proportional to 7,929 and 9,603
Half scale
Find third proportional to 31,716 and 38,412
Double scale
Find third proportional to 15,860 and 19,208
Similar ratio
Find third proportional to 23,787 and 28,809
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.