Home / 11,884.49-16,397.82-8,115.50

Finding the Fourth Proportional to 11,884.49, 16,397.82 and 8,115.50

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Solution

The fourth proportional to 11,884.49, 16,397.82 and 8,115.50 is: 11,197.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,884.49 : 16,397.82 = 8,115.50 : x
  2. Step 2: Convert to fraction form
    11,884.49/16,397.82 = 8,115.50/x
  3. Step 3: Cross multiply
    11,884.49x = 16,397.82 × 8,115.50
  4. Step 4: Simplify right side
    11,884.49x = 133,076,426.22
  5. Step 5: Solve for x
    x = 133,076,426.22/11,884.49
  6. Step 6: Final answer
    x = 11,197.49

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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.