Home / 11,212.85-16,821.92-6,285.89

Finding the Fourth Proportional to 11,212.85, 16,821.92 and 6,285.89

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Solution

The fourth proportional to 11,212.85, 16,821.92 and 6,285.89 is: 9,430.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.85 : 16,821.92 = 6,285.89 : x
  2. Step 2: Convert to fraction form
    11,212.85/16,821.92 = 6,285.89/x
  3. Step 3: Cross multiply
    11,212.85x = 16,821.92 × 6,285.89
  4. Step 4: Simplify right side
    11,212.85x = 105,740,796.48
  5. Step 5: Solve for x
    x = 105,740,796.48/11,212.85
  6. Step 6: Final answer
    x = 9,430.32

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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.