Home / 13,491.27-20,240.19-4,131.45

Finding the Fourth Proportional to 13,491.27, 20,240.19 and 4,131.45

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Solution

The fourth proportional to 13,491.27, 20,240.19 and 4,131.45 is: 6,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.27 : 20,240.19 = 4,131.45 : x
  2. Step 2: Convert to fraction form
    13,491.27/20,240.19 = 4,131.45/x
  3. Step 3: Cross multiply
    13,491.27x = 20,240.19 × 4,131.45
  4. Step 4: Simplify right side
    13,491.27x = 83,621,332.98
  5. Step 5: Solve for x
    x = 83,621,332.98/13,491.27
  6. Step 6: Final answer
    x = 6,198.18

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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.