Home / 11,947.25-16,487.73-6,911.69

Finding the Fourth Proportional to 11,947.25, 16,487.73 and 6,911.69

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Solution

The fourth proportional to 11,947.25, 16,487.73 and 6,911.69 is: 9,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.25 : 16,487.73 = 6,911.69 : x
  2. Step 2: Convert to fraction form
    11,947.25/16,487.73 = 6,911.69/x
  3. Step 3: Cross multiply
    11,947.25x = 16,487.73 × 6,911.69
  4. Step 4: Simplify right side
    11,947.25x = 113,957,996.13
  5. Step 5: Solve for x
    x = 113,957,996.13/11,947.25
  6. Step 6: Final answer
    x = 9,538.43

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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.