Home / 13,647.53-20,468.83-3,787.60

Finding the Fourth Proportional to 13,647.53, 20,468.83 and 3,787.60

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Solution

The fourth proportional to 13,647.53, 20,468.83 and 3,787.60 is: 5,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.53 : 20,468.83 = 3,787.60 : x
  2. Step 2: Convert to fraction form
    13,647.53/20,468.83 = 3,787.60/x
  3. Step 3: Cross multiply
    13,647.53x = 20,468.83 × 3,787.60
  4. Step 4: Simplify right side
    13,647.53x = 77,527,740.51
  5. Step 5: Solve for x
    x = 77,527,740.51/13,647.53
  6. Step 6: Final answer
    x = 5,680.72

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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.