Home / 11,969.97-16,487.71-8,427.03

Finding the Fourth Proportional to 11,969.97, 16,487.71 and 8,427.03

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Solution

The fourth proportional to 11,969.97, 16,487.71 and 8,427.03 is: 11,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969.97 : 16,487.71 = 8,427.03 : x
  2. Step 2: Convert to fraction form
    11,969.97/16,487.71 = 8,427.03/x
  3. Step 3: Cross multiply
    11,969.97x = 16,487.71 × 8,427.03
  4. Step 4: Simplify right side
    11,969.97x = 138,942,426.80
  5. Step 5: Solve for x
    x = 138,942,426.80/11,969.97
  6. Step 6: Final answer
    x = 11,607.58

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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.