Home / 18,664.41-27,981.81-9,299.33

Finding the Fourth Proportional to 18,664.41, 27,981.81 and 9,299.33

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Solution

The fourth proportional to 18,664.41, 27,981.81 and 9,299.33 is: 13,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.41 : 27,981.81 = 9,299.33 : x
  2. Step 2: Convert to fraction form
    18,664.41/27,981.81 = 9,299.33/x
  3. Step 3: Cross multiply
    18,664.41x = 27,981.81 × 9,299.33
  4. Step 4: Simplify right side
    18,664.41x = 260,211,945.28
  5. Step 5: Solve for x
    x = 260,211,945.28/18,664.41
  6. Step 6: Final answer
    x = 13,941.61

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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.