Home / 13,220-18,570

Finding the Third Proportional to 13,220 and 18,570

Calculator

Solution

The third proportional to 13,220 and 18,570 is: 26,085.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220 : 18,570 = 18,570 : x
  2. Step 2: Convert to fraction form
    13,220/18,570 = 18,570/x
  3. Step 3: Cross multiply
    13,220x = 18,570 × 18,570
  4. Step 4: Simplify right side
    13,220x = 344,844,900
  5. Step 5: Solve for x
    x = 344,844,900/13,220
  6. Step 6: Final answer
    x = 26,085.09

Related Problems

Find third proportional to 6,610 and 9,285
Half scale
Find third proportional to 26,440 and 37,140
Double scale
Find third proportional to 13,222 and 18,573
Similar ratio
Find third proportional to 19,830 and 27,855
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.