Home / 12,257.12-18,382.44-5,330

Finding the Fourth Proportional to 12,257.12, 18,382.44 and 5,330

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Solution

The fourth proportional to 12,257.12, 18,382.44 and 5,330 is: 7,993.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.12 : 18,382.44 = 5,330 : x
  2. Step 2: Convert to fraction form
    12,257.12/18,382.44 = 5,330/x
  3. Step 3: Cross multiply
    12,257.12x = 18,382.44 × 5,330
  4. Step 4: Simplify right side
    12,257.12x = 97,978,405.20
  5. Step 5: Solve for x
    x = 97,978,405.20/12,257.12
  6. Step 6: Final answer
    x = 7,993.59

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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.