Home / 8,615-18,607

Finding the Third Proportional to 8,615 and 18,607

Calculator

Solution

The third proportional to 8,615 and 18,607 is: 40,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615 : 18,607 = 18,607 : x
  2. Step 2: Convert to fraction form
    8,615/18,607 = 18,607/x
  3. Step 3: Cross multiply
    8,615x = 18,607 × 18,607
  4. Step 4: Simplify right side
    8,615x = 346,220,449
  5. Step 5: Solve for x
    x = 346,220,449/8,615
  6. Step 6: Final answer
    x = 40,188.10

Related Problems

Find third proportional to 4,307.50 and 9,303.50
Half scale
Find third proportional to 17,230 and 37,214
Double scale
Find third proportional to 8,617 and 18,611
Similar ratio
Find third proportional to 12,922.50 and 27,910.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.