Home / 10,080.05-15,120.68-2,684.48

Finding the Fourth Proportional to 10,080.05, 15,120.68 and 2,684.48

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Solution

The fourth proportional to 10,080.05, 15,120.68 and 2,684.48 is: 4,026.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.05 : 15,120.68 = 2,684.48 : x
  2. Step 2: Convert to fraction form
    10,080.05/15,120.68 = 2,684.48/x
  3. Step 3: Cross multiply
    10,080.05x = 15,120.68 × 2,684.48
  4. Step 4: Simplify right side
    10,080.05x = 40,591,074.02
  5. Step 5: Solve for x
    x = 40,591,074.02/10,080.05
  6. Step 6: Final answer
    x = 4,026.87

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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.