Home / 13,912.53-20,870.09-4,552.61

Finding the Fourth Proportional to 13,912.53, 20,870.09 and 4,552.61

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Solution

The fourth proportional to 13,912.53, 20,870.09 and 4,552.61 is: 6,829.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.53 : 20,870.09 = 4,552.61 : x
  2. Step 2: Convert to fraction form
    13,912.53/20,870.09 = 4,552.61/x
  3. Step 3: Cross multiply
    13,912.53x = 20,870.09 × 4,552.61
  4. Step 4: Simplify right side
    13,912.53x = 95,013,270.39
  5. Step 5: Solve for x
    x = 95,013,270.39/13,912.53
  6. Step 6: Final answer
    x = 6,829.33

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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.