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Finding the Fourth Proportional to 12,240.97, 16,892.49 and 7,205.16

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Solution

The fourth proportional to 12,240.97, 16,892.49 and 7,205.16 is: 9,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.97 : 16,892.49 = 7,205.16 : x
  2. Step 2: Convert to fraction form
    12,240.97/16,892.49 = 7,205.16/x
  3. Step 3: Cross multiply
    12,240.97x = 16,892.49 × 7,205.16
  4. Step 4: Simplify right side
    12,240.97x = 121,713,093.25
  5. Step 5: Solve for x
    x = 121,713,093.25/12,240.97
  6. Step 6: Final answer
    x = 9,943.09

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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.