Home / 11,716-18,312

Finding the Third Proportional to 11,716 and 18,312

Calculator

Solution

The third proportional to 11,716 and 18,312 is: 28,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716 : 18,312 = 18,312 : x
  2. Step 2: Convert to fraction form
    11,716/18,312 = 18,312/x
  3. Step 3: Cross multiply
    11,716x = 18,312 × 18,312
  4. Step 4: Simplify right side
    11,716x = 335,329,344
  5. Step 5: Solve for x
    x = 335,329,344/11,716
  6. Step 6: Final answer
    x = 28,621.49

Related Problems

Find third proportional to 5,858 and 9,156
Half scale
Find third proportional to 23,432 and 36,624
Double scale
Find third proportional to 11,718 and 18,315
Similar ratio
Find third proportional to 17,574 and 27,468
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.