Home / 13,206.81-19,811.13-3,846.91

Finding the Fourth Proportional to 13,206.81, 19,811.13 and 3,846.91

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Solution

The fourth proportional to 13,206.81, 19,811.13 and 3,846.91 is: 5,770.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.81 : 19,811.13 = 3,846.91 : x
  2. Step 2: Convert to fraction form
    13,206.81/19,811.13 = 3,846.91/x
  3. Step 3: Cross multiply
    13,206.81x = 19,811.13 × 3,846.91
  4. Step 4: Simplify right side
    13,206.81x = 76,211,628.94
  5. Step 5: Solve for x
    x = 76,211,628.94/13,206.81
  6. Step 6: Final answer
    x = 5,770.63

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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.