Home / 8,706-21,036

Finding the Third Proportional to 8,706 and 21,036

Calculator

Solution

The third proportional to 8,706 and 21,036 is: 50,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706 : 21,036 = 21,036 : x
  2. Step 2: Convert to fraction form
    8,706/21,036 = 21,036/x
  3. Step 3: Cross multiply
    8,706x = 21,036 × 21,036
  4. Step 4: Simplify right side
    8,706x = 442,513,296
  5. Step 5: Solve for x
    x = 442,513,296/8,706
  6. Step 6: Final answer
    x = 50,828.54

Related Problems

Find third proportional to 4,353 and 10,518
Half scale
Find third proportional to 17,412 and 42,072
Double scale
Find third proportional to 8,708 and 21,041
Similar ratio
Find third proportional to 13,059 and 31,554
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.