Home / 7,961.78-10,986.37-4,604.09

Finding the Fourth Proportional to 7,961.78, 10,986.37 and 4,604.09

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Solution

The fourth proportional to 7,961.78, 10,986.37 and 4,604.09 is: 6,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.78 : 10,986.37 = 4,604.09 : x
  2. Step 2: Convert to fraction form
    7,961.78/10,986.37 = 4,604.09/x
  3. Step 3: Cross multiply
    7,961.78x = 10,986.37 × 4,604.09
  4. Step 4: Simplify right side
    7,961.78x = 50,582,169.81
  5. Step 5: Solve for x
    x = 50,582,169.81/7,961.78
  6. Step 6: Final answer
    x = 6,353.12

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1.5x scale

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.