Home / 12,693.78-19,040.70-3,459.78

Finding the Fourth Proportional to 12,693.78, 19,040.70 and 3,459.78

Calculator

Solution

The fourth proportional to 12,693.78, 19,040.70 and 3,459.78 is: 5,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693.78 : 19,040.70 = 3,459.78 : x
  2. Step 2: Convert to fraction form
    12,693.78/19,040.70 = 3,459.78/x
  3. Step 3: Cross multiply
    12,693.78x = 19,040.70 × 3,459.78
  4. Step 4: Simplify right side
    12,693.78x = 65,876,633.05
  5. Step 5: Solve for x
    x = 65,876,633.05/12,693.78
  6. Step 6: Final answer
    x = 5,189.68

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.