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Finding the Fourth Proportional to 9,009.09, 13,485.93 and 7,680.48

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Solution

The fourth proportional to 9,009.09, 13,485.93 and 7,680.48 is: 11,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.09 : 13,485.93 = 7,680.48 : x
  2. Step 2: Convert to fraction form
    9,009.09/13,485.93 = 7,680.48/x
  3. Step 3: Cross multiply
    9,009.09x = 13,485.93 × 7,680.48
  4. Step 4: Simplify right side
    9,009.09x = 103,578,415.65
  5. Step 5: Solve for x
    x = 103,578,415.65/9,009.09
  6. Step 6: Final answer
    x = 11,497.10

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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.