Home / 8,905.31-13,362.52-3,644.21

Finding the Fourth Proportional to 8,905.31, 13,362.52 and 3,644.21

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Solution

The fourth proportional to 8,905.31, 13,362.52 and 3,644.21 is: 5,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.31 : 13,362.52 = 3,644.21 : x
  2. Step 2: Convert to fraction form
    8,905.31/13,362.52 = 3,644.21/x
  3. Step 3: Cross multiply
    8,905.31x = 13,362.52 × 3,644.21
  4. Step 4: Simplify right side
    8,905.31x = 48,695,784.97
  5. Step 5: Solve for x
    x = 48,695,784.97/8,905.31
  6. Step 6: Final answer
    x = 5,468.17

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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.