Home / 13,692.94-20,530.55-5,373.79

Finding the Fourth Proportional to 13,692.94, 20,530.55 and 5,373.79

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Solution

The fourth proportional to 13,692.94, 20,530.55 and 5,373.79 is: 8,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.94 : 20,530.55 = 5,373.79 : x
  2. Step 2: Convert to fraction form
    13,692.94/20,530.55 = 5,373.79/x
  3. Step 3: Cross multiply
    13,692.94x = 20,530.55 × 5,373.79
  4. Step 4: Simplify right side
    13,692.94x = 110,326,826.39
  5. Step 5: Solve for x
    x = 110,326,826.39/13,692.94
  6. Step 6: Final answer
    x = 8,057.21

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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.