Home / 13,721.29-20,567.77-6,692.61

Finding the Fourth Proportional to 13,721.29, 20,567.77 and 6,692.61

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Solution

The fourth proportional to 13,721.29, 20,567.77 and 6,692.61 is: 10,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.29 : 20,567.77 = 6,692.61 : x
  2. Step 2: Convert to fraction form
    13,721.29/20,567.77 = 6,692.61/x
  3. Step 3: Cross multiply
    13,721.29x = 20,567.77 × 6,692.61
  4. Step 4: Simplify right side
    13,721.29x = 137,652,114.60
  5. Step 5: Solve for x
    x = 137,652,114.60/13,721.29
  6. Step 6: Final answer
    x = 10,032.01

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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.