Home / 11,909.58-16,436.37-6,604.38

Finding the Fourth Proportional to 11,909.58, 16,436.37 and 6,604.38

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Solution

The fourth proportional to 11,909.58, 16,436.37 and 6,604.38 is: 9,114.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.58 : 16,436.37 = 6,604.38 : x
  2. Step 2: Convert to fraction form
    11,909.58/16,436.37 = 6,604.38/x
  3. Step 3: Cross multiply
    11,909.58x = 16,436.37 × 6,604.38
  4. Step 4: Simplify right side
    11,909.58x = 108,552,033.30
  5. Step 5: Solve for x
    x = 108,552,033.30/11,909.58
  6. Step 6: Final answer
    x = 9,114.68

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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.