Home / 15,616-18,370

Finding the Third Proportional to 15,616 and 18,370

Calculator

Solution

The third proportional to 15,616 and 18,370 is: 21,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616 : 18,370 = 18,370 : x
  2. Step 2: Convert to fraction form
    15,616/18,370 = 18,370/x
  3. Step 3: Cross multiply
    15,616x = 18,370 × 18,370
  4. Step 4: Simplify right side
    15,616x = 337,456,900
  5. Step 5: Solve for x
    x = 337,456,900/15,616
  6. Step 6: Final answer
    x = 21,609.69

Related Problems

Find third proportional to 7,808 and 9,185
Half scale
Find third proportional to 31,232 and 36,740
Double scale
Find third proportional to 15,618 and 18,372
Similar ratio
Find third proportional to 23,424 and 27,555
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.