Home / 8,661.03-12,986.36-3,975.18

Finding the Fourth Proportional to 8,661.03, 12,986.36 and 3,975.18

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Solution

The fourth proportional to 8,661.03, 12,986.36 and 3,975.18 is: 5,960.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.03 : 12,986.36 = 3,975.18 : x
  2. Step 2: Convert to fraction form
    8,661.03/12,986.36 = 3,975.18/x
  3. Step 3: Cross multiply
    8,661.03x = 12,986.36 × 3,975.18
  4. Step 4: Simplify right side
    8,661.03x = 51,623,098.67
  5. Step 5: Solve for x
    x = 51,623,098.67/8,661.03
  6. Step 6: Final answer
    x = 5,960.39

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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.