Home / 13,646.31-20,467.17-3,786.58

Finding the Fourth Proportional to 13,646.31, 20,467.17 and 3,786.58

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Solution

The fourth proportional to 13,646.31, 20,467.17 and 3,786.58 is: 5,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.31 : 20,467.17 = 3,786.58 : x
  2. Step 2: Convert to fraction form
    13,646.31/20,467.17 = 3,786.58/x
  3. Step 3: Cross multiply
    13,646.31x = 20,467.17 × 3,786.58
  4. Step 4: Simplify right side
    13,646.31x = 77,500,576.58
  5. Step 5: Solve for x
    x = 77,500,576.58/13,646.31
  6. Step 6: Final answer
    x = 5,679.23

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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.