Home / 11,897.91-17,847.70-4,782.15

Finding the Fourth Proportional to 11,897.91, 17,847.70 and 4,782.15

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Solution

The fourth proportional to 11,897.91, 17,847.70 and 4,782.15 is: 7,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.91 : 17,847.70 = 4,782.15 : x
  2. Step 2: Convert to fraction form
    11,897.91/17,847.70 = 4,782.15/x
  3. Step 3: Cross multiply
    11,897.91x = 17,847.70 × 4,782.15
  4. Step 4: Simplify right side
    11,897.91x = 85,350,378.56
  5. Step 5: Solve for x
    x = 85,350,378.56/11,897.91
  6. Step 6: Final answer
    x = 7,173.56

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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.