Home / 13,721.99-20,584.94-4,235.11

Finding the Fourth Proportional to 13,721.99, 20,584.94 and 4,235.11

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Solution

The fourth proportional to 13,721.99, 20,584.94 and 4,235.11 is: 6,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.99 : 20,584.94 = 4,235.11 : x
  2. Step 2: Convert to fraction form
    13,721.99/20,584.94 = 4,235.11/x
  3. Step 3: Cross multiply
    13,721.99x = 20,584.94 × 4,235.11
  4. Step 4: Simplify right side
    13,721.99x = 87,179,444.37
  5. Step 5: Solve for x
    x = 87,179,444.37/13,721.99
  6. Step 6: Final answer
    x = 6,353.26

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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.