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Finding the Fourth Proportional to 11,196.48, 15,448.80 and 6,480.48

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Solution

The fourth proportional to 11,196.48, 15,448.80 and 6,480.48 is: 8,941.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,196.48 : 15,448.80 = 6,480.48 : x
  2. Step 2: Convert to fraction form
    11,196.48/15,448.80 = 6,480.48/x
  3. Step 3: Cross multiply
    11,196.48x = 15,448.80 × 6,480.48
  4. Step 4: Simplify right side
    11,196.48x = 100,115,639.42
  5. Step 5: Solve for x
    x = 100,115,639.42/11,196.48
  6. Step 6: Final answer
    x = 8,941.71

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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.