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Finding the Fourth Proportional to 11,446.48, 15,795.08 and 6,478.48

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Solution

The fourth proportional to 11,446.48, 15,795.08 and 6,478.48 is: 8,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,446.48 : 15,795.08 = 6,478.48 : x
  2. Step 2: Convert to fraction form
    11,446.48/15,795.08 = 6,478.48/x
  3. Step 3: Cross multiply
    11,446.48x = 15,795.08 × 6,478.48
  4. Step 4: Simplify right side
    11,446.48x = 102,328,109.88
  5. Step 5: Solve for x
    x = 102,328,109.88/11,446.48
  6. Step 6: Final answer
    x = 8,939.70

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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.