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Finding the Fourth Proportional to 11,445.54, 15,793.02 and 6,409.98

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Solution

The fourth proportional to 11,445.54, 15,793.02 and 6,409.98 is: 8,844.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.54 : 15,793.02 = 6,409.98 : x
  2. Step 2: Convert to fraction form
    11,445.54/15,793.02 = 6,409.98/x
  3. Step 3: Cross multiply
    11,445.54x = 15,793.02 × 6,409.98
  4. Step 4: Simplify right side
    11,445.54x = 101,232,942.34
  5. Step 5: Solve for x
    x = 101,232,942.34/11,445.54
  6. Step 6: Final answer
    x = 8,844.75

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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.