Home / 6,876.78-10,300.81-4,399.02

Finding the Fourth Proportional to 6,876.78, 10,300.81 and 4,399.02

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Solution

The fourth proportional to 6,876.78, 10,300.81 and 4,399.02 is: 6,589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.78 : 10,300.81 = 4,399.02 : x
  2. Step 2: Convert to fraction form
    6,876.78/10,300.81 = 4,399.02/x
  3. Step 3: Cross multiply
    6,876.78x = 10,300.81 × 4,399.02
  4. Step 4: Simplify right side
    6,876.78x = 45,313,469.21
  5. Step 5: Solve for x
    x = 45,313,469.21/6,876.78
  6. Step 6: Final answer
    x = 6,589.34

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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.