Home / 8,906.31-13,364.02-3,645.21

Finding the Fourth Proportional to 8,906.31, 13,364.02 and 3,645.21

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Solution

The fourth proportional to 8,906.31, 13,364.02 and 3,645.21 is: 5,469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.31 : 13,364.02 = 3,645.21 : x
  2. Step 2: Convert to fraction form
    8,906.31/13,364.02 = 3,645.21/x
  3. Step 3: Cross multiply
    8,906.31x = 13,364.02 × 3,645.21
  4. Step 4: Simplify right side
    8,906.31x = 48,714,659.34
  5. Step 5: Solve for x
    x = 48,714,659.34/8,906.31
  6. Step 6: Final answer
    x = 5,469.68

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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.