Home / 18,436.87-27,664.49-8,441.60

Finding the Fourth Proportional to 18,436.87, 27,664.49 and 8,441.60

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Solution

The fourth proportional to 18,436.87, 27,664.49 and 8,441.60 is: 12,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.87 : 27,664.49 = 8,441.60 : x
  2. Step 2: Convert to fraction form
    18,436.87/27,664.49 = 8,441.60/x
  3. Step 3: Cross multiply
    18,436.87x = 27,664.49 × 8,441.60
  4. Step 4: Simplify right side
    18,436.87x = 233,532,516.58
  5. Step 5: Solve for x
    x = 233,532,516.58/18,436.87
  6. Step 6: Final answer
    x = 12,666.60

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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.