Home / 7,176-12,786

Finding the Third Proportional to 7,176 and 12,786

Calculator

Solution

The third proportional to 7,176 and 12,786 is: 22,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176 : 12,786 = 12,786 : x
  2. Step 2: Convert to fraction form
    7,176/12,786 = 12,786/x
  3. Step 3: Cross multiply
    7,176x = 12,786 × 12,786
  4. Step 4: Simplify right side
    7,176x = 163,481,796
  5. Step 5: Solve for x
    x = 163,481,796/7,176
  6. Step 6: Final answer
    x = 22,781.74

Related Problems

Find third proportional to 3,588 and 6,393
Half scale
Find third proportional to 14,352 and 25,572
Double scale
Find third proportional to 7,178 and 12,790
Similar ratio
Find third proportional to 10,764 and 19,179
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.