Home / 7,722-18,211.50

Finding the Third Proportional to 7,722 and 18,211.50

Calculator

Solution

The third proportional to 7,722 and 18,211.50 is: 42,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722 : 18,211.50 = 18,211.50 : x
  2. Step 2: Convert to fraction form
    7,722/18,211.50 = 18,211.50/x
  3. Step 3: Cross multiply
    7,722x = 18,211.50 × 18,211.50
  4. Step 4: Simplify right side
    7,722x = 331,658,732.25
  5. Step 5: Solve for x
    x = 331,658,732.25/7,722
  6. Step 6: Final answer
    x = 42,949.85

Related Problems

Find third proportional to 3,861 and 9,105.75
Half scale
Find third proportional to 15,444 and 36,423
Double scale
Find third proportional to 7,724 and 18,216
Similar ratio
Find third proportional to 11,583 and 27,317.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.