Home / 8,430.75-13,398

Finding the Third Proportional to 8,430.75 and 13,398

Calculator

Solution

The third proportional to 8,430.75 and 13,398 is: 21,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.75 : 13,398 = 13,398 : x
  2. Step 2: Convert to fraction form
    8,430.75/13,398 = 13,398/x
  3. Step 3: Cross multiply
    8,430.75x = 13,398 × 13,398
  4. Step 4: Simplify right side
    8,430.75x = 179,506,404
  5. Step 5: Solve for x
    x = 179,506,404/8,430.75
  6. Step 6: Final answer
    x = 21,291.87

Related Problems

Find third proportional to 4,215.38 and 6,699
Half scale
Find third proportional to 16,861.50 and 26,796
Double scale
Find third proportional to 8,433 and 13,401
Similar ratio
Find third proportional to 12,646.13 and 20,097
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.