Home / 13,712-21,808

Finding the Third Proportional to 13,712 and 21,808

Calculator

Solution

The third proportional to 13,712 and 21,808 is: 34,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712 : 21,808 = 21,808 : x
  2. Step 2: Convert to fraction form
    13,712/21,808 = 21,808/x
  3. Step 3: Cross multiply
    13,712x = 21,808 × 21,808
  4. Step 4: Simplify right side
    13,712x = 475,588,864
  5. Step 5: Solve for x
    x = 475,588,864/13,712
  6. Step 6: Final answer
    x = 34,684.14

Related Problems

Find third proportional to 6,856 and 10,904
Half scale
Find third proportional to 27,424 and 43,616
Double scale
Find third proportional to 13,714 and 21,811
Similar ratio
Find third proportional to 20,568 and 32,712
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.