Home / 11,743.45-16,205.61-6,438.09

Finding the Fourth Proportional to 11,743.45, 16,205.61 and 6,438.09

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Solution

The fourth proportional to 11,743.45, 16,205.61 and 6,438.09 is: 8,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.45 : 16,205.61 = 6,438.09 : x
  2. Step 2: Convert to fraction form
    11,743.45/16,205.61 = 6,438.09/x
  3. Step 3: Cross multiply
    11,743.45x = 16,205.61 × 6,438.09
  4. Step 4: Simplify right side
    11,743.45x = 104,333,094.66
  5. Step 5: Solve for x
    x = 104,333,094.66/11,743.45
  6. Step 6: Final answer
    x = 8,884.36

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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.