Home / 13,839.45-20,746.86-5,072.33

Finding the Fourth Proportional to 13,839.45, 20,746.86 and 5,072.33

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Solution

The fourth proportional to 13,839.45, 20,746.86 and 5,072.33 is: 7,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.45 : 20,746.86 = 5,072.33 : x
  2. Step 2: Convert to fraction form
    13,839.45/20,746.86 = 5,072.33/x
  3. Step 3: Cross multiply
    13,839.45x = 20,746.86 × 5,072.33
  4. Step 4: Simplify right side
    13,839.45x = 105,234,816.65
  5. Step 5: Solve for x
    x = 105,234,816.65/13,839.45
  6. Step 6: Final answer
    x = 7,603.97

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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.