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Finding the Fourth Proportional to 6,632.21, 9,945.12 and 3,859.51

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Solution

The fourth proportional to 6,632.21, 9,945.12 and 3,859.51 is: 5,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,632.21 : 9,945.12 = 3,859.51 : x
  2. Step 2: Convert to fraction form
    6,632.21/9,945.12 = 3,859.51/x
  3. Step 3: Cross multiply
    6,632.21x = 9,945.12 × 3,859.51
  4. Step 4: Simplify right side
    6,632.21x = 38,383,290.09
  5. Step 5: Solve for x
    x = 38,383,290.09/6,632.21
  6. Step 6: Final answer
    x = 5,787.41

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1.5x scale

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.