Home / 13,692.61-18,895.41-7,723.92

Finding the Fourth Proportional to 13,692.61, 18,895.41 and 7,723.92

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Solution

The fourth proportional to 13,692.61, 18,895.41 and 7,723.92 is: 10,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.61 : 18,895.41 = 7,723.92 : x
  2. Step 2: Convert to fraction form
    13,692.61/18,895.41 = 7,723.92/x
  3. Step 3: Cross multiply
    13,692.61x = 18,895.41 × 7,723.92
  4. Step 4: Simplify right side
    13,692.61x = 145,946,635.21
  5. Step 5: Solve for x
    x = 145,946,635.21/13,692.61
  6. Step 6: Final answer
    x = 10,658.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.