Home / 12,877.77-19,318.83-3,991.06

Finding the Fourth Proportional to 12,877.77, 19,318.83 and 3,991.06

Calculator

Solution

The fourth proportional to 12,877.77, 19,318.83 and 3,991.06 is: 5,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.77 : 19,318.83 = 3,991.06 : x
  2. Step 2: Convert to fraction form
    12,877.77/19,318.83 = 3,991.06/x
  3. Step 3: Cross multiply
    12,877.77x = 19,318.83 × 3,991.06
  4. Step 4: Simplify right side
    12,877.77x = 77,102,609.66
  5. Step 5: Solve for x
    x = 77,102,609.66/12,877.77
  6. Step 6: Final answer
    x = 5,987.26

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.