Home / 11,808-15,516

Finding the Third Proportional to 11,808 and 15,516

Calculator

Solution

The third proportional to 11,808 and 15,516 is: 20,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808 : 15,516 = 15,516 : x
  2. Step 2: Convert to fraction form
    11,808/15,516 = 15,516/x
  3. Step 3: Cross multiply
    11,808x = 15,516 × 15,516
  4. Step 4: Simplify right side
    11,808x = 240,746,256
  5. Step 5: Solve for x
    x = 240,746,256/11,808
  6. Step 6: Final answer
    x = 20,388.40

Related Problems

Find third proportional to 5,904 and 7,758
Half scale
Find third proportional to 23,616 and 31,032
Double scale
Find third proportional to 11,810 and 15,519
Similar ratio
Find third proportional to 17,712 and 23,274
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.