Home / 12,683.97-19,029.08-3,918.87

Finding the Fourth Proportional to 12,683.97, 19,029.08 and 3,918.87

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Solution

The fourth proportional to 12,683.97, 19,029.08 and 3,918.87 is: 5,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.97 : 19,029.08 = 3,918.87 : x
  2. Step 2: Convert to fraction form
    12,683.97/19,029.08 = 3,918.87/x
  3. Step 3: Cross multiply
    12,683.97x = 19,029.08 × 3,918.87
  4. Step 4: Simplify right side
    12,683.97x = 74,572,490.74
  5. Step 5: Solve for x
    x = 74,572,490.74/12,683.97
  6. Step 6: Final answer
    x = 5,879.27

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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.