Home / 13,290-18,897

Finding the Third Proportional to 13,290 and 18,897

Calculator

Solution

The third proportional to 13,290 and 18,897 is: 26,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290 : 18,897 = 18,897 : x
  2. Step 2: Convert to fraction form
    13,290/18,897 = 18,897/x
  3. Step 3: Cross multiply
    13,290x = 18,897 × 18,897
  4. Step 4: Simplify right side
    13,290x = 357,096,609
  5. Step 5: Solve for x
    x = 357,096,609/13,290
  6. Step 6: Final answer
    x = 26,869.57

Related Problems

Find third proportional to 6,645 and 9,448.50
Half scale
Find third proportional to 26,580 and 37,794
Double scale
Find third proportional to 13,292 and 18,900
Similar ratio
Find third proportional to 19,935 and 28,345.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.