Home / 7,755-9,810

Finding the Third Proportional to 7,755 and 9,810

Calculator

Solution

The third proportional to 7,755 and 9,810 is: 12,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755 : 9,810 = 9,810 : x
  2. Step 2: Convert to fraction form
    7,755/9,810 = 9,810/x
  3. Step 3: Cross multiply
    7,755x = 9,810 × 9,810
  4. Step 4: Simplify right side
    7,755x = 96,236,100
  5. Step 5: Solve for x
    x = 96,236,100/7,755
  6. Step 6: Final answer
    x = 12,409.56

Related Problems

Find third proportional to 3,877.50 and 4,905
Half scale
Find third proportional to 15,510 and 19,620
Double scale
Find third proportional to 7,757 and 9,813
Similar ratio
Find third proportional to 11,632.50 and 14,715
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.