Home / 4,451-7,870

Finding the Third Proportional to 4,451 and 7,870

Calculator

Solution

The third proportional to 4,451 and 7,870 is: 13,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,451 : 7,870 = 7,870 : x
  2. Step 2: Convert to fraction form
    4,451/7,870 = 7,870/x
  3. Step 3: Cross multiply
    4,451x = 7,870 × 7,870
  4. Step 4: Simplify right side
    4,451x = 61,936,900
  5. Step 5: Solve for x
    x = 61,936,900/4,451
  6. Step 6: Final answer
    x = 13,915.28

Related Problems

Find third proportional to 2,225.50 and 3,935
Half scale
Find third proportional to 8,902 and 15,740
Double scale
Find third proportional to 4,453 and 7,874
Similar ratio
Find third proportional to 6,676.50 and 11,805
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.