Home / 10,447.20-15,665.44-3,516.64

Finding the Fourth Proportional to 10,447.20, 15,665.44 and 3,516.64

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Solution

The fourth proportional to 10,447.20, 15,665.44 and 3,516.64 is: 5,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.20 : 15,665.44 = 3,516.64 : x
  2. Step 2: Convert to fraction form
    10,447.20/15,665.44 = 3,516.64/x
  3. Step 3: Cross multiply
    10,447.20x = 15,665.44 × 3,516.64
  4. Step 4: Simplify right side
    10,447.20x = 55,089,712.92
  5. Step 5: Solve for x
    x = 55,089,712.92/10,447.20
  6. Step 6: Final answer
    x = 5,273.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.