Home / 13,146.42-19,716.66-3,786.42

Finding the Fourth Proportional to 13,146.42, 19,716.66 and 3,786.42

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Solution

The fourth proportional to 13,146.42, 19,716.66 and 3,786.42 is: 5,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.42 : 19,716.66 = 3,786.42 : x
  2. Step 2: Convert to fraction form
    13,146.42/19,716.66 = 3,786.42/x
  3. Step 3: Cross multiply
    13,146.42x = 19,716.66 × 3,786.42
  4. Step 4: Simplify right side
    13,146.42x = 74,655,555.76
  5. Step 5: Solve for x
    x = 74,655,555.76/13,146.42
  6. Step 6: Final answer
    x = 5,678.77

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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.