Home / 8,426-18,286

Finding the Third Proportional to 8,426 and 18,286

Calculator

Solution

The third proportional to 8,426 and 18,286 is: 39,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426 : 18,286 = 18,286 : x
  2. Step 2: Convert to fraction form
    8,426/18,286 = 18,286/x
  3. Step 3: Cross multiply
    8,426x = 18,286 × 18,286
  4. Step 4: Simplify right side
    8,426x = 334,377,796
  5. Step 5: Solve for x
    x = 334,377,796/8,426
  6. Step 6: Final answer
    x = 39,684.05

Related Problems

Find third proportional to 4,213 and 9,143
Half scale
Find third proportional to 16,852 and 36,572
Double scale
Find third proportional to 8,428 and 18,290
Similar ratio
Find third proportional to 12,639 and 27,429
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.