Home / 6,620-9,709

Finding the Third Proportional to 6,620 and 9,709

Calculator

Solution

The third proportional to 6,620 and 9,709 is: 14,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620 : 9,709 = 9,709 : x
  2. Step 2: Convert to fraction form
    6,620/9,709 = 9,709/x
  3. Step 3: Cross multiply
    6,620x = 9,709 × 9,709
  4. Step 4: Simplify right side
    6,620x = 94,264,681
  5. Step 5: Solve for x
    x = 94,264,681/6,620
  6. Step 6: Final answer
    x = 14,239.38

Related Problems

Find third proportional to 3,310 and 4,854.50
Half scale
Find third proportional to 13,240 and 19,418
Double scale
Find third proportional to 6,622 and 9,712
Similar ratio
Find third proportional to 9,930 and 14,563.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.