Home / 12,911.08-19,369.82-3,677

Finding the Fourth Proportional to 12,911.08, 19,369.82 and 3,677

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Solution

The fourth proportional to 12,911.08, 19,369.82 and 3,677 is: 5,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.08 : 19,369.82 = 3,677 : x
  2. Step 2: Convert to fraction form
    12,911.08/19,369.82 = 3,677/x
  3. Step 3: Cross multiply
    12,911.08x = 19,369.82 × 3,677
  4. Step 4: Simplify right side
    12,911.08x = 71,222,828.14
  5. Step 5: Solve for x
    x = 71,222,828.14/12,911.08
  6. Step 6: Final answer
    x = 5,516.41

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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.