Home / 7,777-8,911

Finding the Third Proportional to 7,777 and 8,911

Calculator

Solution

The third proportional to 7,777 and 8,911 is: 10,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777 : 8,911 = 8,911 : x
  2. Step 2: Convert to fraction form
    7,777/8,911 = 8,911/x
  3. Step 3: Cross multiply
    7,777x = 8,911 × 8,911
  4. Step 4: Simplify right side
    7,777x = 79,405,921
  5. Step 5: Solve for x
    x = 79,405,921/7,777
  6. Step 6: Final answer
    x = 10,210.35

Related Problems

Find third proportional to 3,888.50 and 4,455.50
Half scale
Find third proportional to 15,554 and 17,822
Double scale
Find third proportional to 7,779 and 8,913
Similar ratio
Find third proportional to 11,665.50 and 13,366.50
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.