Home / 12,208.63-18,329.88-6,289.75

Finding the Fourth Proportional to 12,208.63, 18,329.88 and 6,289.75

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Solution

The fourth proportional to 12,208.63, 18,329.88 and 6,289.75 is: 9,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.63 : 18,329.88 = 6,289.75 : x
  2. Step 2: Convert to fraction form
    12,208.63/18,329.88 = 6,289.75/x
  3. Step 3: Cross multiply
    12,208.63x = 18,329.88 × 6,289.75
  4. Step 4: Simplify right side
    12,208.63x = 115,290,362.73
  5. Step 5: Solve for x
    x = 115,290,362.73/12,208.63
  6. Step 6: Final answer
    x = 9,443.35

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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.