Home / 7,775-8,999

Finding the Third Proportional to 7,775 and 8,999

Calculator

Solution

The third proportional to 7,775 and 8,999 is: 10,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775 : 8,999 = 8,999 : x
  2. Step 2: Convert to fraction form
    7,775/8,999 = 8,999/x
  3. Step 3: Cross multiply
    7,775x = 8,999 × 8,999
  4. Step 4: Simplify right side
    7,775x = 80,982,001
  5. Step 5: Solve for x
    x = 80,982,001/7,775
  6. Step 6: Final answer
    x = 10,415.69

Related Problems

Find third proportional to 3,887.50 and 4,499.50
Half scale
Find third proportional to 15,550 and 17,998
Double scale
Find third proportional to 7,777 and 9,001
Similar ratio
Find third proportional to 11,662.50 and 13,498.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.