Home / 5,129-7,842

Finding the Third Proportional to 5,129 and 7,842

Calculator

Solution

The third proportional to 5,129 and 7,842 is: 11,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129 : 7,842 = 7,842 : x
  2. Step 2: Convert to fraction form
    5,129/7,842 = 7,842/x
  3. Step 3: Cross multiply
    5,129x = 7,842 × 7,842
  4. Step 4: Simplify right side
    5,129x = 61,496,964
  5. Step 5: Solve for x
    x = 61,496,964/5,129
  6. Step 6: Final answer
    x = 11,990.05

Related Problems

Find third proportional to 2,564.50 and 3,921
Half scale
Find third proportional to 10,258 and 15,684
Double scale
Find third proportional to 5,131 and 7,845
Similar ratio
Find third proportional to 7,693.50 and 11,763
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.