Home / 15,502.42-21,392.76-8,428.60

Finding the Fourth Proportional to 15,502.42, 21,392.76 and 8,428.60

Calculator

Solution

The fourth proportional to 15,502.42, 21,392.76 and 8,428.60 is: 11,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502.42 : 21,392.76 = 8,428.60 : x
  2. Step 2: Convert to fraction form
    15,502.42/21,392.76 = 8,428.60/x
  3. Step 3: Cross multiply
    15,502.42x = 21,392.76 × 8,428.60
  4. Step 4: Simplify right side
    15,502.42x = 180,311,016.94
  5. Step 5: Solve for x
    x = 180,311,016.94/15,502.42
  6. Step 6: Final answer
    x = 11,631.15

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.