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Finding the Fourth Proportional to 11,124.20, 15,353.02 and 6,407.56

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Solution

The fourth proportional to 11,124.20, 15,353.02 and 6,407.56 is: 8,843.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.20 : 15,353.02 = 6,407.56 : x
  2. Step 2: Convert to fraction form
    11,124.20/15,353.02 = 6,407.56/x
  3. Step 3: Cross multiply
    11,124.20x = 15,353.02 × 6,407.56
  4. Step 4: Simplify right side
    11,124.20x = 98,375,396.83
  5. Step 5: Solve for x
    x = 98,375,396.83/11,124.20
  6. Step 6: Final answer
    x = 8,843.37

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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.