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Finding the Fourth Proportional to 8,656.48, 11,941.68 and 8,321.14

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Solution

The fourth proportional to 8,656.48, 11,941.68 and 8,321.14 is: 11,479.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.48 : 11,941.68 = 8,321.14 : x
  2. Step 2: Convert to fraction form
    8,656.48/11,941.68 = 8,321.14/x
  3. Step 3: Cross multiply
    8,656.48x = 11,941.68 × 8,321.14
  4. Step 4: Simplify right side
    8,656.48x = 99,368,391.12
  5. Step 5: Solve for x
    x = 99,368,391.12/8,656.48
  6. Step 6: Final answer
    x = 11,479.08

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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.