Home / 7,776-12,852

Finding the Third Proportional to 7,776 and 12,852

Calculator

Solution

The third proportional to 7,776 and 12,852 is: 21,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776 : 12,852 = 12,852 : x
  2. Step 2: Convert to fraction form
    7,776/12,852 = 12,852/x
  3. Step 3: Cross multiply
    7,776x = 12,852 × 12,852
  4. Step 4: Simplify right side
    7,776x = 165,173,904
  5. Step 5: Solve for x
    x = 165,173,904/7,776
  6. Step 6: Final answer
    x = 21,241.50

Related Problems

Find third proportional to 3,888 and 6,426
Half scale
Find third proportional to 15,552 and 25,704
Double scale
Find third proportional to 7,778 and 12,855
Similar ratio
Find third proportional to 11,664 and 19,278
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.