Home / 12,389.36-18,583.97-3,029.42

Finding the Fourth Proportional to 12,389.36, 18,583.97 and 3,029.42

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Solution

The fourth proportional to 12,389.36, 18,583.97 and 3,029.42 is: 4,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.36 : 18,583.97 = 3,029.42 : x
  2. Step 2: Convert to fraction form
    12,389.36/18,583.97 = 3,029.42/x
  3. Step 3: Cross multiply
    12,389.36x = 18,583.97 × 3,029.42
  4. Step 4: Simplify right side
    12,389.36x = 56,298,650.40
  5. Step 5: Solve for x
    x = 56,298,650.40/12,389.36
  6. Step 6: Final answer
    x = 4,544.11

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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.