Home / 3,136-7,664

Finding the Third Proportional to 3,136 and 7,664

Calculator

Solution

The third proportional to 3,136 and 7,664 is: 18,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136 : 7,664 = 7,664 : x
  2. Step 2: Convert to fraction form
    3,136/7,664 = 7,664/x
  3. Step 3: Cross multiply
    3,136x = 7,664 × 7,664
  4. Step 4: Simplify right side
    3,136x = 58,736,896
  5. Step 5: Solve for x
    x = 58,736,896/3,136
  6. Step 6: Final answer
    x = 18,729.88

Related Problems

Find third proportional to 1,568 and 3,832
Half scale
Find third proportional to 6,272 and 15,328
Double scale
Find third proportional to 3,138 and 7,669
Similar ratio
Find third proportional to 4,704 and 11,496
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.