Home / 8,629-18,503

Finding the Third Proportional to 8,629 and 18,503

Calculator

Solution

The third proportional to 8,629 and 18,503 is: 39,675.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629 : 18,503 = 18,503 : x
  2. Step 2: Convert to fraction form
    8,629/18,503 = 18,503/x
  3. Step 3: Cross multiply
    8,629x = 18,503 × 18,503
  4. Step 4: Simplify right side
    8,629x = 342,361,009
  5. Step 5: Solve for x
    x = 342,361,009/8,629
  6. Step 6: Final answer
    x = 39,675.63

Related Problems

Find third proportional to 4,314.50 and 9,251.50
Half scale
Find third proportional to 17,258 and 37,006
Double scale
Find third proportional to 8,631 and 18,507
Similar ratio
Find third proportional to 12,943.50 and 27,754.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.