Home / 10,788.06-16,185.96-4,218.96

Finding the Fourth Proportional to 10,788.06, 16,185.96 and 4,218.96

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Solution

The fourth proportional to 10,788.06, 16,185.96 and 4,218.96 is: 6,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788.06 : 16,185.96 = 4,218.96 : x
  2. Step 2: Convert to fraction form
    10,788.06/16,185.96 = 4,218.96/x
  3. Step 3: Cross multiply
    10,788.06x = 16,185.96 × 4,218.96
  4. Step 4: Simplify right side
    10,788.06x = 68,287,917.80
  5. Step 5: Solve for x
    x = 68,287,917.80/10,788.06
  6. Step 6: Final answer
    x = 6,329.95

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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.