Home / 13,982.52-20,968.50-4,119

Finding the Fourth Proportional to 13,982.52, 20,968.50 and 4,119

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Solution

The fourth proportional to 13,982.52, 20,968.50 and 4,119 is: 6,176.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.52 : 20,968.50 = 4,119 : x
  2. Step 2: Convert to fraction form
    13,982.52/20,968.50 = 4,119/x
  3. Step 3: Cross multiply
    13,982.52x = 20,968.50 × 4,119
  4. Step 4: Simplify right side
    13,982.52x = 86,369,251.50
  5. Step 5: Solve for x
    x = 86,369,251.50/13,982.52
  6. Step 6: Final answer
    x = 6,176.94

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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.