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Finding the Fourth Proportional to 13,416.04, 18,516.36 and 7,827.04

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Solution

The fourth proportional to 13,416.04, 18,516.36 and 7,827.04 is: 10,802.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.04 : 18,516.36 = 7,827.04 : x
  2. Step 2: Convert to fraction form
    13,416.04/18,516.36 = 7,827.04/x
  3. Step 3: Cross multiply
    13,416.04x = 18,516.36 × 7,827.04
  4. Step 4: Simplify right side
    13,416.04x = 144,928,290.37
  5. Step 5: Solve for x
    x = 144,928,290.37/13,416.04
  6. Step 6: Final answer
    x = 10,802.61

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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.