Home / 8,110.72-12,163.92-2,916.64

Finding the Fourth Proportional to 8,110.72, 12,163.92 and 2,916.64

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Solution

The fourth proportional to 8,110.72, 12,163.92 and 2,916.64 is: 4,374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.72 : 12,163.92 = 2,916.64 : x
  2. Step 2: Convert to fraction form
    8,110.72/12,163.92 = 2,916.64/x
  3. Step 3: Cross multiply
    8,110.72x = 12,163.92 × 2,916.64
  4. Step 4: Simplify right side
    8,110.72x = 35,477,775.63
  5. Step 5: Solve for x
    x = 35,477,775.63/8,110.72
  6. Step 6: Final answer
    x = 4,374.18

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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.