Home / 13,207.86-19,815.03-3,847.96

Finding the Fourth Proportional to 13,207.86, 19,815.03 and 3,847.96

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Solution

The fourth proportional to 13,207.86, 19,815.03 and 3,847.96 is: 5,772.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.86 : 19,815.03 = 3,847.96 : x
  2. Step 2: Convert to fraction form
    13,207.86/19,815.03 = 3,847.96/x
  3. Step 3: Cross multiply
    13,207.86x = 19,815.03 × 3,847.96
  4. Step 4: Simplify right side
    13,207.86x = 76,247,442.84
  5. Step 5: Solve for x
    x = 76,247,442.84/13,207.86
  6. Step 6: Final answer
    x = 5,772.88

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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.