Home / 13,692.12-20,538.18-4,926.81

Finding the Fourth Proportional to 13,692.12, 20,538.18 and 4,926.81

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Solution

The fourth proportional to 13,692.12, 20,538.18 and 4,926.81 is: 7,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.12 : 20,538.18 = 4,926.81 : x
  2. Step 2: Convert to fraction form
    13,692.12/20,538.18 = 4,926.81/x
  3. Step 3: Cross multiply
    13,692.12x = 20,538.18 × 4,926.81
  4. Step 4: Simplify right side
    13,692.12x = 101,187,710.61
  5. Step 5: Solve for x
    x = 101,187,710.61/13,692.12
  6. Step 6: Final answer
    x = 7,390.22

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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.