Home / 12,747.75-19,124.32-3,983.32

Finding the Fourth Proportional to 12,747.75, 19,124.32 and 3,983.32

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Solution

The fourth proportional to 12,747.75, 19,124.32 and 3,983.32 is: 5,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.75 : 19,124.32 = 3,983.32 : x
  2. Step 2: Convert to fraction form
    12,747.75/19,124.32 = 3,983.32/x
  3. Step 3: Cross multiply
    12,747.75x = 19,124.32 × 3,983.32
  4. Step 4: Simplify right side
    12,747.75x = 76,178,286.34
  5. Step 5: Solve for x
    x = 76,178,286.34/12,747.75
  6. Step 6: Final answer
    x = 5,975.82

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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.