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Finding the Fourth Proportional to 11,995.70, 17,999.01 and 6,156.41

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Solution

The fourth proportional to 11,995.70, 17,999.01 and 6,156.41 is: 9,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.70 : 17,999.01 = 6,156.41 : x
  2. Step 2: Convert to fraction form
    11,995.70/17,999.01 = 6,156.41/x
  3. Step 3: Cross multiply
    11,995.70x = 17,999.01 × 6,156.41
  4. Step 4: Simplify right side
    11,995.70x = 110,809,195.16
  5. Step 5: Solve for x
    x = 110,809,195.16/11,995.70
  6. Step 6: Final answer
    x = 9,237.41

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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.