Home / 12,101.76-18,136.48-6,467.88

Finding the Fourth Proportional to 12,101.76, 18,136.48 and 6,467.88

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Solution

The fourth proportional to 12,101.76, 18,136.48 and 6,467.88 is: 9,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.76 : 18,136.48 = 6,467.88 : x
  2. Step 2: Convert to fraction form
    12,101.76/18,136.48 = 6,467.88/x
  3. Step 3: Cross multiply
    12,101.76x = 18,136.48 × 6,467.88
  4. Step 4: Simplify right side
    12,101.76x = 117,304,576.26
  5. Step 5: Solve for x
    x = 117,304,576.26/12,101.76
  6. Step 6: Final answer
    x = 9,693.19

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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.