Home / 11,918.54-17,867.18-4,517.98

Finding the Fourth Proportional to 11,918.54, 17,867.18 and 4,517.98

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Solution

The fourth proportional to 11,918.54, 17,867.18 and 4,517.98 is: 6,772.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.54 : 17,867.18 = 4,517.98 : x
  2. Step 2: Convert to fraction form
    11,918.54/17,867.18 = 4,517.98/x
  3. Step 3: Cross multiply
    11,918.54x = 17,867.18 × 4,517.98
  4. Step 4: Simplify right side
    11,918.54x = 80,723,528.52
  5. Step 5: Solve for x
    x = 80,723,528.52/11,918.54
  6. Step 6: Final answer
    x = 6,772.94

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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.