Home / 8,642-16,178

Finding the Third Proportional to 8,642 and 16,178

Calculator

Solution

The third proportional to 8,642 and 16,178 is: 30,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642 : 16,178 = 16,178 : x
  2. Step 2: Convert to fraction form
    8,642/16,178 = 16,178/x
  3. Step 3: Cross multiply
    8,642x = 16,178 × 16,178
  4. Step 4: Simplify right side
    8,642x = 261,727,684
  5. Step 5: Solve for x
    x = 261,727,684/8,642
  6. Step 6: Final answer
    x = 30,285.55

Related Problems

Find third proportional to 4,321 and 8,089
Half scale
Find third proportional to 17,284 and 32,356
Double scale
Find third proportional to 8,644 and 16,182
Similar ratio
Find third proportional to 12,963 and 24,267
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.