Home / 7,984.08-11,989.46-4,989.09

Finding the Fourth Proportional to 7,984.08, 11,989.46 and 4,989.09

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Solution

The fourth proportional to 7,984.08, 11,989.46 and 4,989.09 is: 7,491.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.08 : 11,989.46 = 4,989.09 : x
  2. Step 2: Convert to fraction form
    7,984.08/11,989.46 = 4,989.09/x
  3. Step 3: Cross multiply
    7,984.08x = 11,989.46 × 4,989.09
  4. Step 4: Simplify right side
    7,984.08x = 59,816,494.99
  5. Step 5: Solve for x
    x = 59,816,494.99/7,984.08
  6. Step 6: Final answer
    x = 7,491.97

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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.