Home / 11,975.55-17,963.31-3,655.61

Finding the Fourth Proportional to 11,975.55, 17,963.31 and 3,655.61

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Solution

The fourth proportional to 11,975.55, 17,963.31 and 3,655.61 is: 5,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.55 : 17,963.31 = 3,655.61 : x
  2. Step 2: Convert to fraction form
    11,975.55/17,963.31 = 3,655.61/x
  3. Step 3: Cross multiply
    11,975.55x = 17,963.31 × 3,655.61
  4. Step 4: Simplify right side
    11,975.55x = 65,666,765.85
  5. Step 5: Solve for x
    x = 65,666,765.85/11,975.55
  6. Step 6: Final answer
    x = 5,483.40

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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.