Home / 11,310-15,912

Finding the Third Proportional to 11,310 and 15,912

Calculator

Solution

The third proportional to 11,310 and 15,912 is: 22,386.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310 : 15,912 = 15,912 : x
  2. Step 2: Convert to fraction form
    11,310/15,912 = 15,912/x
  3. Step 3: Cross multiply
    11,310x = 15,912 × 15,912
  4. Step 4: Simplify right side
    11,310x = 253,191,744
  5. Step 5: Solve for x
    x = 253,191,744/11,310
  6. Step 6: Final answer
    x = 22,386.54

Related Problems

Find third proportional to 5,655 and 7,956
Half scale
Find third proportional to 22,620 and 31,824
Double scale
Find third proportional to 11,312 and 15,915
Similar ratio
Find third proportional to 16,965 and 23,868
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.