Home / 8,685-18,450

Finding the Third Proportional to 8,685 and 18,450

Calculator

Solution

The third proportional to 8,685 and 18,450 is: 39,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685 : 18,450 = 18,450 : x
  2. Step 2: Convert to fraction form
    8,685/18,450 = 18,450/x
  3. Step 3: Cross multiply
    8,685x = 18,450 × 18,450
  4. Step 4: Simplify right side
    8,685x = 340,402,500
  5. Step 5: Solve for x
    x = 340,402,500/8,685
  6. Step 6: Final answer
    x = 39,194.30

Related Problems

Find third proportional to 4,342.50 and 9,225
Half scale
Find third proportional to 17,370 and 36,900
Double scale
Find third proportional to 8,687 and 18,454
Similar ratio
Find third proportional to 13,027.50 and 27,675
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.