Home / 11,217.67-16,829.79-3,320.39

Finding the Fourth Proportional to 11,217.67, 16,829.79 and 3,320.39

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Solution

The fourth proportional to 11,217.67, 16,829.79 and 3,320.39 is: 4,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.67 : 16,829.79 = 3,320.39 : x
  2. Step 2: Convert to fraction form
    11,217.67/16,829.79 = 3,320.39/x
  3. Step 3: Cross multiply
    11,217.67x = 16,829.79 × 3,320.39
  4. Step 4: Simplify right side
    11,217.67x = 55,881,466.42
  5. Step 5: Solve for x
    x = 55,881,466.42/11,217.67
  6. Step 6: Final answer
    x = 4,981.56

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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.