Home / 6,426-7,389

Finding the Third Proportional to 6,426 and 7,389

Calculator

Solution

The third proportional to 6,426 and 7,389 is: 8,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426 : 7,389 = 7,389 : x
  2. Step 2: Convert to fraction form
    6,426/7,389 = 7,389/x
  3. Step 3: Cross multiply
    6,426x = 7,389 × 7,389
  4. Step 4: Simplify right side
    6,426x = 54,597,321
  5. Step 5: Solve for x
    x = 54,597,321/6,426
  6. Step 6: Final answer
    x = 8,496.32

Related Problems

Find third proportional to 3,213 and 3,694.50
Half scale
Find third proportional to 12,852 and 14,778
Double scale
Find third proportional to 6,428 and 7,391
Similar ratio
Find third proportional to 9,639 and 11,083.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.