Home / 13,819.87-20,723.32-5,048.65

Finding the Fourth Proportional to 13,819.87, 20,723.32 and 5,048.65

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Solution

The fourth proportional to 13,819.87, 20,723.32 and 5,048.65 is: 7,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.87 : 20,723.32 = 5,048.65 : x
  2. Step 2: Convert to fraction form
    13,819.87/20,723.32 = 5,048.65/x
  3. Step 3: Cross multiply
    13,819.87x = 20,723.32 × 5,048.65
  4. Step 4: Simplify right side
    13,819.87x = 104,624,660.66
  5. Step 5: Solve for x
    x = 104,624,660.66/13,819.87
  6. Step 6: Final answer
    x = 7,570.60

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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.