Home / 11,640.31-17,456.21-4,242.58

Finding the Fourth Proportional to 11,640.31, 17,456.21 and 4,242.58

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Solution

The fourth proportional to 11,640.31, 17,456.21 and 4,242.58 is: 6,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.31 : 17,456.21 = 4,242.58 : x
  2. Step 2: Convert to fraction form
    11,640.31/17,456.21 = 4,242.58/x
  3. Step 3: Cross multiply
    11,640.31x = 17,456.21 × 4,242.58
  4. Step 4: Simplify right side
    11,640.31x = 74,059,318.48
  5. Step 5: Solve for x
    x = 74,059,318.48/11,640.31
  6. Step 6: Final answer
    x = 6,362.32

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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.