Home / 12,353.87-18,531.56-4,957.38

Finding the Fourth Proportional to 12,353.87, 18,531.56 and 4,957.38

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Solution

The fourth proportional to 12,353.87, 18,531.56 and 4,957.38 is: 7,436.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.87 : 18,531.56 = 4,957.38 : x
  2. Step 2: Convert to fraction form
    12,353.87/18,531.56 = 4,957.38/x
  3. Step 3: Cross multiply
    12,353.87x = 18,531.56 × 4,957.38
  4. Step 4: Simplify right side
    12,353.87x = 91,867,997.31
  5. Step 5: Solve for x
    x = 91,867,997.31/12,353.87
  6. Step 6: Final answer
    x = 7,436.37

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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.