Home / 7,914-8,643

Finding the Third Proportional to 7,914 and 8,643

Calculator

Solution

The third proportional to 7,914 and 8,643 is: 9,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914 : 8,643 = 8,643 : x
  2. Step 2: Convert to fraction form
    7,914/8,643 = 8,643/x
  3. Step 3: Cross multiply
    7,914x = 8,643 × 8,643
  4. Step 4: Simplify right side
    7,914x = 74,701,449
  5. Step 5: Solve for x
    x = 74,701,449/7,914
  6. Step 6: Final answer
    x = 9,439.15

Related Problems

Find third proportional to 3,957 and 4,321.50
Half scale
Find third proportional to 15,828 and 17,286
Double scale
Find third proportional to 7,916 and 8,645
Similar ratio
Find third proportional to 11,871 and 12,964.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.