Home / 7,961.68-11,916.96-4,254.64

Finding the Fourth Proportional to 7,961.68, 11,916.96 and 4,254.64

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Solution

The fourth proportional to 7,961.68, 11,916.96 and 4,254.64 is: 6,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.68 : 11,916.96 = 4,254.64 : x
  2. Step 2: Convert to fraction form
    7,961.68/11,916.96 = 4,254.64/x
  3. Step 3: Cross multiply
    7,961.68x = 11,916.96 × 4,254.64
  4. Step 4: Simplify right side
    7,961.68x = 50,702,374.69
  5. Step 5: Solve for x
    x = 50,702,374.69/7,961.68
  6. Step 6: Final answer
    x = 6,368.30

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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.