Home / 7,708-11,970

Finding the Third Proportional to 7,708 and 11,970

Calculator

Solution

The third proportional to 7,708 and 11,970 is: 18,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708 : 11,970 = 11,970 : x
  2. Step 2: Convert to fraction form
    7,708/11,970 = 11,970/x
  3. Step 3: Cross multiply
    7,708x = 11,970 × 11,970
  4. Step 4: Simplify right side
    7,708x = 143,280,900
  5. Step 5: Solve for x
    x = 143,280,900/7,708
  6. Step 6: Final answer
    x = 18,588.60

Related Problems

Find third proportional to 3,854 and 5,985
Half scale
Find third proportional to 15,416 and 23,940
Double scale
Find third proportional to 7,710 and 11,973
Similar ratio
Find third proportional to 11,562 and 17,955
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.