Home / 8,770-11,817

Finding the Third Proportional to 8,770 and 11,817

Calculator

Solution

The third proportional to 8,770 and 11,817 is: 15,922.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770 : 11,817 = 11,817 : x
  2. Step 2: Convert to fraction form
    8,770/11,817 = 11,817/x
  3. Step 3: Cross multiply
    8,770x = 11,817 × 11,817
  4. Step 4: Simplify right side
    8,770x = 139,641,489
  5. Step 5: Solve for x
    x = 139,641,489/8,770
  6. Step 6: Final answer
    x = 15,922.63

Related Problems

Find third proportional to 4,385 and 5,908.50
Half scale
Find third proportional to 17,540 and 23,634
Double scale
Find third proportional to 8,772 and 11,820
Similar ratio
Find third proportional to 13,155 and 17,725.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.