Home / 8,320-16,440

Finding the Third Proportional to 8,320 and 16,440

Calculator

Solution

The third proportional to 8,320 and 16,440 is: 32,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320 : 16,440 = 16,440 : x
  2. Step 2: Convert to fraction form
    8,320/16,440 = 16,440/x
  3. Step 3: Cross multiply
    8,320x = 16,440 × 16,440
  4. Step 4: Simplify right side
    8,320x = 270,273,600
  5. Step 5: Solve for x
    x = 270,273,600/8,320
  6. Step 6: Final answer
    x = 32,484.81

Related Problems

Find third proportional to 4,160 and 8,220
Half scale
Find third proportional to 16,640 and 32,880
Double scale
Find third proportional to 8,322 and 16,444
Similar ratio
Find third proportional to 12,480 and 24,660
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.