Home / 13,555.25-20,330.57-3,692.23

Finding the Fourth Proportional to 13,555.25, 20,330.57 and 3,692.23

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Solution

The fourth proportional to 13,555.25, 20,330.57 and 3,692.23 is: 5,537.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.25 : 20,330.57 = 3,692.23 : x
  2. Step 2: Convert to fraction form
    13,555.25/20,330.57 = 3,692.23/x
  3. Step 3: Cross multiply
    13,555.25x = 20,330.57 × 3,692.23
  4. Step 4: Simplify right side
    13,555.25x = 75,065,052.66
  5. Step 5: Solve for x
    x = 75,065,052.66/13,555.25
  6. Step 6: Final answer
    x = 5,537.71

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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.