Home / 7,716.72-11,569.68-3,818.64

Finding the Fourth Proportional to 7,716.72, 11,569.68 and 3,818.64

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Solution

The fourth proportional to 7,716.72, 11,569.68 and 3,818.64 is: 5,725.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.72 : 11,569.68 = 3,818.64 : x
  2. Step 2: Convert to fraction form
    7,716.72/11,569.68 = 3,818.64/x
  3. Step 3: Cross multiply
    7,716.72x = 11,569.68 × 3,818.64
  4. Step 4: Simplify right side
    7,716.72x = 44,180,442.84
  5. Step 5: Solve for x
    x = 44,180,442.84/7,716.72
  6. Step 6: Final answer
    x = 5,725.29

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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.