Home / 7,968.78-10,996.61-4,431.74

Finding the Fourth Proportional to 7,968.78, 10,996.61 and 4,431.74

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Solution

The fourth proportional to 7,968.78, 10,996.61 and 4,431.74 is: 6,115.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.78 : 10,996.61 = 4,431.74 : x
  2. Step 2: Convert to fraction form
    7,968.78/10,996.61 = 4,431.74/x
  3. Step 3: Cross multiply
    7,968.78x = 10,996.61 × 4,431.74
  4. Step 4: Simplify right side
    7,968.78x = 48,734,039.26
  5. Step 5: Solve for x
    x = 48,734,039.26/7,968.78
  6. Step 6: Final answer
    x = 6,115.62

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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.