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Finding the Fourth Proportional to 11,943, 17,912.21 and 11,350.31

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Solution

The fourth proportional to 11,943, 17,912.21 and 11,350.31 is: 17,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943 : 17,912.21 = 11,350.31 : x
  2. Step 2: Convert to fraction form
    11,943/17,912.21 = 11,350.31/x
  3. Step 3: Cross multiply
    11,943x = 17,912.21 × 11,350.31
  4. Step 4: Simplify right side
    11,943x = 203,308,989.97
  5. Step 5: Solve for x
    x = 203,308,989.97/11,943
  6. Step 6: Final answer
    x = 17,023.28

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1.5x scale

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.