Home / 9,722-21,207

Finding the Third Proportional to 9,722 and 21,207

Calculator

Solution

The third proportional to 9,722 and 21,207 is: 46,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,722 : 21,207 = 21,207 : x
  2. Step 2: Convert to fraction form
    9,722/21,207 = 21,207/x
  3. Step 3: Cross multiply
    9,722x = 21,207 × 21,207
  4. Step 4: Simplify right side
    9,722x = 449,736,849
  5. Step 5: Solve for x
    x = 449,736,849/9,722
  6. Step 6: Final answer
    x = 46,259.70

Related Problems

Find third proportional to 4,861 and 10,603.50
Half scale
Find third proportional to 19,444 and 42,414
Double scale
Find third proportional to 9,724 and 21,211
Similar ratio
Find third proportional to 14,583 and 31,810.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.