Home / 11,578.89-17,368.32-3,787.71

Finding the Fourth Proportional to 11,578.89, 17,368.32 and 3,787.71

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Solution

The fourth proportional to 11,578.89, 17,368.32 and 3,787.71 is: 5,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,578.89 : 17,368.32 = 3,787.71 : x
  2. Step 2: Convert to fraction form
    11,578.89/17,368.32 = 3,787.71/x
  3. Step 3: Cross multiply
    11,578.89x = 17,368.32 × 3,787.71
  4. Step 4: Simplify right side
    11,578.89x = 65,786,159.35
  5. Step 5: Solve for x
    x = 65,786,159.35/11,578.89
  6. Step 6: Final answer
    x = 5,681.56

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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.