Home / 11,120-15,639

Finding the Third Proportional to 11,120 and 15,639

Calculator

Solution

The third proportional to 11,120 and 15,639 is: 21,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120 : 15,639 = 15,639 : x
  2. Step 2: Convert to fraction form
    11,120/15,639 = 15,639/x
  3. Step 3: Cross multiply
    11,120x = 15,639 × 15,639
  4. Step 4: Simplify right side
    11,120x = 244,578,321
  5. Step 5: Solve for x
    x = 244,578,321/11,120
  6. Step 6: Final answer
    x = 21,994.45

Related Problems

Find third proportional to 5,560 and 7,819.50
Half scale
Find third proportional to 22,240 and 31,278
Double scale
Find third proportional to 11,122 and 15,642
Similar ratio
Find third proportional to 16,680 and 23,458.50
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.