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Finding the Fourth Proportional to 8,380.33, 12,564.51 and 3,935.51

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Solution

The fourth proportional to 8,380.33, 12,564.51 and 3,935.51 is: 5,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.33 : 12,564.51 = 3,935.51 : x
  2. Step 2: Convert to fraction form
    8,380.33/12,564.51 = 3,935.51/x
  3. Step 3: Cross multiply
    8,380.33x = 12,564.51 × 3,935.51
  4. Step 4: Simplify right side
    8,380.33x = 49,447,754.75
  5. Step 5: Solve for x
    x = 49,447,754.75/8,380.33
  6. Step 6: Final answer
    x = 5,900.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.