Home / 11,829.80-17,748.05-3,509.80

Finding the Fourth Proportional to 11,829.80, 17,748.05 and 3,509.80

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Solution

The fourth proportional to 11,829.80, 17,748.05 and 3,509.80 is: 5,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.80 : 17,748.05 = 3,509.80 : x
  2. Step 2: Convert to fraction form
    11,829.80/17,748.05 = 3,509.80/x
  3. Step 3: Cross multiply
    11,829.80x = 17,748.05 × 3,509.80
  4. Step 4: Simplify right side
    11,829.80x = 62,292,043.97
  5. Step 5: Solve for x
    x = 62,292,043.97/11,829.80
  6. Step 6: Final answer
    x = 5,265.69

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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.