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Finding the Fourth Proportional to 11,682.15, 17,526.93 and 7,991.65

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Solution

The fourth proportional to 11,682.15, 17,526.93 and 7,991.65 is: 11,990.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.15 : 17,526.93 = 7,991.65 : x
  2. Step 2: Convert to fraction form
    11,682.15/17,526.93 = 7,991.65/x
  3. Step 3: Cross multiply
    11,682.15x = 17,526.93 × 7,991.65
  4. Step 4: Simplify right side
    11,682.15x = 140,069,090.13
  5. Step 5: Solve for x
    x = 140,069,090.13/11,682.15
  6. Step 6: Final answer
    x = 11,990.01

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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.