Home / 13,692.24-20,501.28-7,104.57

Finding the Fourth Proportional to 13,692.24, 20,501.28 and 7,104.57

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Solution

The fourth proportional to 13,692.24, 20,501.28 and 7,104.57 is: 10,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.24 : 20,501.28 = 7,104.57 : x
  2. Step 2: Convert to fraction form
    13,692.24/20,501.28 = 7,104.57/x
  3. Step 3: Cross multiply
    13,692.24x = 20,501.28 × 7,104.57
  4. Step 4: Simplify right side
    13,692.24x = 145,652,778.85
  5. Step 5: Solve for x
    x = 145,652,778.85/13,692.24
  6. Step 6: Final answer
    x = 10,637.62

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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.