Home / 12,339.97-18,511.68-4,017.28

Finding the Fourth Proportional to 12,339.97, 18,511.68 and 4,017.28

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Solution

The fourth proportional to 12,339.97, 18,511.68 and 4,017.28 is: 6,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.97 : 18,511.68 = 4,017.28 : x
  2. Step 2: Convert to fraction form
    12,339.97/18,511.68 = 4,017.28/x
  3. Step 3: Cross multiply
    12,339.97x = 18,511.68 × 4,017.28
  4. Step 4: Simplify right side
    12,339.97x = 74,366,601.83
  5. Step 5: Solve for x
    x = 74,366,601.83/12,339.97
  6. Step 6: Final answer
    x = 6,026.48

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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.