Home / 11,675.43-17,430-11,265.36

Finding the Fourth Proportional to 11,675.43, 17,430 and 11,265.36

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Solution

The fourth proportional to 11,675.43, 17,430 and 11,265.36 is: 16,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,675.43 : 17,430 = 11,265.36 : x
  2. Step 2: Convert to fraction form
    11,675.43/17,430 = 11,265.36/x
  3. Step 3: Cross multiply
    11,675.43x = 17,430 × 11,265.36
  4. Step 4: Simplify right side
    11,675.43x = 196,355,224.80
  5. Step 5: Solve for x
    x = 196,355,224.80/11,675.43
  6. Step 6: Final answer
    x = 16,817.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.