Home / 7,090-12,620

Finding the Third Proportional to 7,090 and 12,620

Calculator

Solution

The third proportional to 7,090 and 12,620 is: 22,463.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090 : 12,620 = 12,620 : x
  2. Step 2: Convert to fraction form
    7,090/12,620 = 12,620/x
  3. Step 3: Cross multiply
    7,090x = 12,620 × 12,620
  4. Step 4: Simplify right side
    7,090x = 159,264,400
  5. Step 5: Solve for x
    x = 159,264,400/7,090
  6. Step 6: Final answer
    x = 22,463.24

Related Problems

Find third proportional to 3,545 and 6,310
Half scale
Find third proportional to 14,180 and 25,240
Double scale
Find third proportional to 7,092 and 12,624
Similar ratio
Find third proportional to 10,635 and 18,930
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.