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Finding the Fourth Proportional to 9,992.31, 14,997.11 and 3,840.63

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Solution

The fourth proportional to 9,992.31, 14,997.11 and 3,840.63 is: 5,764.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.31 : 14,997.11 = 3,840.63 : x
  2. Step 2: Convert to fraction form
    9,992.31/14,997.11 = 3,840.63/x
  3. Step 3: Cross multiply
    9,992.31x = 14,997.11 × 3,840.63
  4. Step 4: Simplify right side
    9,992.31x = 57,598,350.58
  5. Step 5: Solve for x
    x = 57,598,350.58/9,992.31
  6. Step 6: Final answer
    x = 5,764.27

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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.