Home / 8,689.47-13,034.22-2,115.66

Finding the Fourth Proportional to 8,689.47, 13,034.22 and 2,115.66

Calculator

Solution

The fourth proportional to 8,689.47, 13,034.22 and 2,115.66 is: 3,173.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.47 : 13,034.22 = 2,115.66 : x
  2. Step 2: Convert to fraction form
    8,689.47/13,034.22 = 2,115.66/x
  3. Step 3: Cross multiply
    8,689.47x = 13,034.22 × 2,115.66
  4. Step 4: Simplify right side
    8,689.47x = 27,575,977.89
  5. Step 5: Solve for x
    x = 27,575,977.89/8,689.47
  6. Step 6: Final answer
    x = 3,173.49

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.