Home / 11,692.88-16,135.68-6,387.58

Finding the Fourth Proportional to 11,692.88, 16,135.68 and 6,387.58

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Solution

The fourth proportional to 11,692.88, 16,135.68 and 6,387.58 is: 8,814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,692.88 : 16,135.68 = 6,387.58 : x
  2. Step 2: Convert to fraction form
    11,692.88/16,135.68 = 6,387.58/x
  3. Step 3: Cross multiply
    11,692.88x = 16,135.68 × 6,387.58
  4. Step 4: Simplify right side
    11,692.88x = 103,067,946.85
  5. Step 5: Solve for x
    x = 103,067,946.85/11,692.88
  6. Step 6: Final answer
    x = 8,814.59

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1.5x scale

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.