Home / 8,908.52-12,289.58-5,765.72

Finding the Fourth Proportional to 8,908.52, 12,289.58 and 5,765.72

Calculator

Solution

The fourth proportional to 8,908.52, 12,289.58 and 5,765.72 is: 7,953.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.52 : 12,289.58 = 5,765.72 : x
  2. Step 2: Convert to fraction form
    8,908.52/12,289.58 = 5,765.72/x
  3. Step 3: Cross multiply
    8,908.52x = 12,289.58 × 5,765.72
  4. Step 4: Simplify right side
    8,908.52x = 70,858,277.20
  5. Step 5: Solve for x
    x = 70,858,277.20/8,908.52
  6. Step 6: Final answer
    x = 7,953.99

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.