Home / 18,544.38-27,812.93-11,877.81

Finding the Fourth Proportional to 18,544.38, 27,812.93 and 11,877.81

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Solution

The fourth proportional to 18,544.38, 27,812.93 and 11,877.81 is: 17,814.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,544.38 : 27,812.93 = 11,877.81 : x
  2. Step 2: Convert to fraction form
    18,544.38/27,812.93 = 11,877.81/x
  3. Step 3: Cross multiply
    18,544.38x = 27,812.93 × 11,877.81
  4. Step 4: Simplify right side
    18,544.38x = 330,356,638.69
  5. Step 5: Solve for x
    x = 330,356,638.69/18,544.38
  6. Step 6: Final answer
    x = 17,814.38

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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.