Home / 8,724-13,692

Finding the Third Proportional to 8,724 and 13,692

Calculator

Solution

The third proportional to 8,724 and 13,692 is: 21,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724 : 13,692 = 13,692 : x
  2. Step 2: Convert to fraction form
    8,724/13,692 = 13,692/x
  3. Step 3: Cross multiply
    8,724x = 13,692 × 13,692
  4. Step 4: Simplify right side
    8,724x = 187,470,864
  5. Step 5: Solve for x
    x = 187,470,864/8,724
  6. Step 6: Final answer
    x = 21,489.09

Related Problems

Find third proportional to 4,362 and 6,846
Half scale
Find third proportional to 17,448 and 27,384
Double scale
Find third proportional to 8,726 and 13,695
Similar ratio
Find third proportional to 13,086 and 20,538
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.