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Finding the Fourth Proportional to 8,881.02, 13,321.53 and 7,146

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Solution

The fourth proportional to 8,881.02, 13,321.53 and 7,146 is: 10,719

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.02 : 13,321.53 = 7,146 : x
  2. Step 2: Convert to fraction form
    8,881.02/13,321.53 = 7,146/x
  3. Step 3: Cross multiply
    8,881.02x = 13,321.53 × 7,146
  4. Step 4: Simplify right side
    8,881.02x = 95,195,653.38
  5. Step 5: Solve for x
    x = 95,195,653.38/8,881.02
  6. Step 6: Final answer
    x = 10,719

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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.