Home / 8,813.36-13,221.99-2,969.82

Finding the Fourth Proportional to 8,813.36, 13,221.99 and 2,969.82

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Solution

The fourth proportional to 8,813.36, 13,221.99 and 2,969.82 is: 4,455.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.36 : 13,221.99 = 2,969.82 : x
  2. Step 2: Convert to fraction form
    8,813.36/13,221.99 = 2,969.82/x
  3. Step 3: Cross multiply
    8,813.36x = 13,221.99 × 2,969.82
  4. Step 4: Simplify right side
    8,813.36x = 39,266,930.34
  5. Step 5: Solve for x
    x = 39,266,930.34/8,813.36
  6. Step 6: Final answer
    x = 4,455.39

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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.