Home / 13,647.54-20,469.06-3,787.83

Finding the Fourth Proportional to 13,647.54, 20,469.06 and 3,787.83

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Solution

The fourth proportional to 13,647.54, 20,469.06 and 3,787.83 is: 5,681.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.54 : 20,469.06 = 3,787.83 : x
  2. Step 2: Convert to fraction form
    13,647.54/20,469.06 = 3,787.83/x
  3. Step 3: Cross multiply
    13,647.54x = 20,469.06 × 3,787.83
  4. Step 4: Simplify right side
    13,647.54x = 77,533,319.54
  5. Step 5: Solve for x
    x = 77,533,319.54/13,647.54
  6. Step 6: Final answer
    x = 5,681.12

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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.