Home / 12,080.24-18,120.37-3,315.22

Finding the Fourth Proportional to 12,080.24, 18,120.37 and 3,315.22

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Solution

The fourth proportional to 12,080.24, 18,120.37 and 3,315.22 is: 4,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.24 : 18,120.37 = 3,315.22 : x
  2. Step 2: Convert to fraction form
    12,080.24/18,120.37 = 3,315.22/x
  3. Step 3: Cross multiply
    12,080.24x = 18,120.37 × 3,315.22
  4. Step 4: Simplify right side
    12,080.24x = 60,073,013.03
  5. Step 5: Solve for x
    x = 60,073,013.03/12,080.24
  6. Step 6: Final answer
    x = 4,972.83

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1.5x scale

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.