Home / 13,839.04-20,745.81-5,517.07

Finding the Fourth Proportional to 13,839.04, 20,745.81 and 5,517.07

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Solution

The fourth proportional to 13,839.04, 20,745.81 and 5,517.07 is: 8,270.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.04 : 20,745.81 = 5,517.07 : x
  2. Step 2: Convert to fraction form
    13,839.04/20,745.81 = 5,517.07/x
  3. Step 3: Cross multiply
    13,839.04x = 20,745.81 × 5,517.07
  4. Step 4: Simplify right side
    13,839.04x = 114,456,085.98
  5. Step 5: Solve for x
    x = 114,456,085.98/13,839.04
  6. Step 6: Final answer
    x = 8,270.52

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1.5x scale

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.