Home / 4,889-7,872

Finding the Third Proportional to 4,889 and 7,872

Calculator

Solution

The third proportional to 4,889 and 7,872 is: 12,675.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889 : 7,872 = 7,872 : x
  2. Step 2: Convert to fraction form
    4,889/7,872 = 7,872/x
  3. Step 3: Cross multiply
    4,889x = 7,872 × 7,872
  4. Step 4: Simplify right side
    4,889x = 61,968,384
  5. Step 5: Solve for x
    x = 61,968,384/4,889
  6. Step 6: Final answer
    x = 12,675.06

Related Problems

Find third proportional to 2,444.50 and 3,936
Half scale
Find third proportional to 9,778 and 15,744
Double scale
Find third proportional to 4,891 and 7,875
Similar ratio
Find third proportional to 7,333.50 and 11,808
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.