Home / 11,217.75-16,829.25-6,290.79

Finding the Fourth Proportional to 11,217.75, 16,829.25 and 6,290.79

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Solution

The fourth proportional to 11,217.75, 16,829.25 and 6,290.79 is: 9,437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.75 : 16,829.25 = 6,290.79 : x
  2. Step 2: Convert to fraction form
    11,217.75/16,829.25 = 6,290.79/x
  3. Step 3: Cross multiply
    11,217.75x = 16,829.25 × 6,290.79
  4. Step 4: Simplify right side
    11,217.75x = 105,869,277.61
  5. Step 5: Solve for x
    x = 105,869,277.61/11,217.75
  6. Step 6: Final answer
    x = 9,437.66

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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.