Home / 12,528.60-17,289.42-6,939.60

Finding the Fourth Proportional to 12,528.60, 17,289.42 and 6,939.60

Calculator

Solution

The fourth proportional to 12,528.60, 17,289.42 and 6,939.60 is: 9,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.60 : 17,289.42 = 6,939.60 : x
  2. Step 2: Convert to fraction form
    12,528.60/17,289.42 = 6,939.60/x
  3. Step 3: Cross multiply
    12,528.60x = 17,289.42 × 6,939.60
  4. Step 4: Simplify right side
    12,528.60x = 119,981,659.03
  5. Step 5: Solve for x
    x = 119,981,659.03/12,528.60
  6. Step 6: Final answer
    x = 9,576.62

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.