Home / 11,945.12-17,915.63-3,177.98

Finding the Fourth Proportional to 11,945.12, 17,915.63 and 3,177.98

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Solution

The fourth proportional to 11,945.12, 17,915.63 and 3,177.98 is: 4,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.12 : 17,915.63 = 3,177.98 : x
  2. Step 2: Convert to fraction form
    11,945.12/17,915.63 = 3,177.98/x
  3. Step 3: Cross multiply
    11,945.12x = 17,915.63 × 3,177.98
  4. Step 4: Simplify right side
    11,945.12x = 56,935,594.19
  5. Step 5: Solve for x
    x = 56,935,594.19/11,945.12
  6. Step 6: Final answer
    x = 4,766.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.