Home / 8,706-9,678

Finding the Third Proportional to 8,706 and 9,678

Calculator

Solution

The third proportional to 8,706 and 9,678 is: 10,758.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706 : 9,678 = 9,678 : x
  2. Step 2: Convert to fraction form
    8,706/9,678 = 9,678/x
  3. Step 3: Cross multiply
    8,706x = 9,678 × 9,678
  4. Step 4: Simplify right side
    8,706x = 93,663,684
  5. Step 5: Solve for x
    x = 93,663,684/8,706
  6. Step 6: Final answer
    x = 10,758.52

Related Problems

Find third proportional to 4,353 and 4,839
Half scale
Find third proportional to 17,412 and 19,356
Double scale
Find third proportional to 8,708 and 9,680
Similar ratio
Find third proportional to 13,059 and 14,517
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.