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Finding the Fourth Proportional to 9,304.64, 12,828.48 and 7,619.84

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Solution

The fourth proportional to 9,304.64, 12,828.48 and 7,619.84 is: 10,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,304.64 : 12,828.48 = 7,619.84 : x
  2. Step 2: Convert to fraction form
    9,304.64/12,828.48 = 7,619.84/x
  3. Step 3: Cross multiply
    9,304.64x = 12,828.48 × 7,619.84
  4. Step 4: Simplify right side
    9,304.64x = 97,750,965.04
  5. Step 5: Solve for x
    x = 97,750,965.04/9,304.64
  6. Step 6: Final answer
    x = 10,505.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.