Home / 13,747.57-20,621.35-4,982.47

Finding the Fourth Proportional to 13,747.57, 20,621.35 and 4,982.47

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Solution

The fourth proportional to 13,747.57, 20,621.35 and 4,982.47 is: 7,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.57 : 20,621.35 = 4,982.47 : x
  2. Step 2: Convert to fraction form
    13,747.57/20,621.35 = 4,982.47/x
  3. Step 3: Cross multiply
    13,747.57x = 20,621.35 × 4,982.47
  4. Step 4: Simplify right side
    13,747.57x = 102,745,257.73
  5. Step 5: Solve for x
    x = 102,745,257.73/13,747.57
  6. Step 6: Final answer
    x = 7,473.70

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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.