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Finding the Fourth Proportional to 9,857.97, 13,604.03 and 5,381.82

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Solution

The fourth proportional to 9,857.97, 13,604.03 and 5,381.82 is: 7,426.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,857.97 : 13,604.03 = 5,381.82 : x
  2. Step 2: Convert to fraction form
    9,857.97/13,604.03 = 5,381.82/x
  3. Step 3: Cross multiply
    9,857.97x = 13,604.03 × 5,381.82
  4. Step 4: Simplify right side
    9,857.97x = 73,214,440.73
  5. Step 5: Solve for x
    x = 73,214,440.73/9,857.97
  6. Step 6: Final answer
    x = 7,426.93

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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.