Home / 13,147.24-19,721.03-3,787.41

Finding the Fourth Proportional to 13,147.24, 19,721.03 and 3,787.41

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Solution

The fourth proportional to 13,147.24, 19,721.03 and 3,787.41 is: 5,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.24 : 19,721.03 = 3,787.41 : x
  2. Step 2: Convert to fraction form
    13,147.24/19,721.03 = 3,787.41/x
  3. Step 3: Cross multiply
    13,147.24x = 19,721.03 × 3,787.41
  4. Step 4: Simplify right side
    13,147.24x = 74,691,626.23
  5. Step 5: Solve for x
    x = 74,691,626.23/13,147.24
  6. Step 6: Final answer
    x = 5,681.16

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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.