Home / 7,984.30-11,018.57-4,399.49

Finding the Fourth Proportional to 7,984.30, 11,018.57 and 4,399.49

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Solution

The fourth proportional to 7,984.30, 11,018.57 and 4,399.49 is: 6,071.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.30 : 11,018.57 = 4,399.49 : x
  2. Step 2: Convert to fraction form
    7,984.30/11,018.57 = 4,399.49/x
  3. Step 3: Cross multiply
    7,984.30x = 11,018.57 × 4,399.49
  4. Step 4: Simplify right side
    7,984.30x = 48,476,011.44
  5. Step 5: Solve for x
    x = 48,476,011.44/7,984.30
  6. Step 6: Final answer
    x = 6,071.42

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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.