Home / 13,149.63-19,711.92-4,378.41

Finding the Fourth Proportional to 13,149.63, 19,711.92 and 4,378.41

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Solution

The fourth proportional to 13,149.63, 19,711.92 and 4,378.41 is: 6,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.63 : 19,711.92 = 4,378.41 : x
  2. Step 2: Convert to fraction form
    13,149.63/19,711.92 = 4,378.41/x
  3. Step 3: Cross multiply
    13,149.63x = 19,711.92 × 4,378.41
  4. Step 4: Simplify right side
    13,149.63x = 86,306,867.65
  5. Step 5: Solve for x
    x = 86,306,867.65/13,149.63
  6. Step 6: Final answer
    x = 6,563.44

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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.