Home / 15,086.14-20,805.22-9,421.40

Finding the Fourth Proportional to 15,086.14, 20,805.22 and 9,421.40

Calculator

Solution

The fourth proportional to 15,086.14, 20,805.22 and 9,421.40 is: 12,993.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,086.14 : 20,805.22 = 9,421.40 : x
  2. Step 2: Convert to fraction form
    15,086.14/20,805.22 = 9,421.40/x
  3. Step 3: Cross multiply
    15,086.14x = 20,805.22 × 9,421.40
  4. Step 4: Simplify right side
    15,086.14x = 196,014,299.71
  5. Step 5: Solve for x
    x = 196,014,299.71/15,086.14
  6. Step 6: Final answer
    x = 12,993.01

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.