Home / 8,424-18,306

Finding the Third Proportional to 8,424 and 18,306

Calculator

Solution

The third proportional to 8,424 and 18,306 is: 39,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424 : 18,306 = 18,306 : x
  2. Step 2: Convert to fraction form
    8,424/18,306 = 18,306/x
  3. Step 3: Cross multiply
    8,424x = 18,306 × 18,306
  4. Step 4: Simplify right side
    8,424x = 335,109,636
  5. Step 5: Solve for x
    x = 335,109,636/8,424
  6. Step 6: Final answer
    x = 39,780.35

Related Problems

Find third proportional to 4,212 and 9,153
Half scale
Find third proportional to 16,848 and 36,612
Double scale
Find third proportional to 8,426 and 18,310
Similar ratio
Find third proportional to 12,636 and 27,459
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.