Home / 13,983.06-20,977.50-4,121.52

Finding the Fourth Proportional to 13,983.06, 20,977.50 and 4,121.52

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Solution

The fourth proportional to 13,983.06, 20,977.50 and 4,121.52 is: 6,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.06 : 20,977.50 = 4,121.52 : x
  2. Step 2: Convert to fraction form
    13,983.06/20,977.50 = 4,121.52/x
  3. Step 3: Cross multiply
    13,983.06x = 20,977.50 × 4,121.52
  4. Step 4: Simplify right side
    13,983.06x = 86,459,185.80
  5. Step 5: Solve for x
    x = 86,459,185.80/13,983.06
  6. Step 6: Final answer
    x = 6,183.14

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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.