Home / 18,388.14-27,581.64-10,942.74

Finding the Fourth Proportional to 18,388.14, 27,581.64 and 10,942.74

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Solution

The fourth proportional to 18,388.14, 27,581.64 and 10,942.74 is: 16,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.14 : 27,581.64 = 10,942.74 : x
  2. Step 2: Convert to fraction form
    18,388.14/27,581.64 = 10,942.74/x
  3. Step 3: Cross multiply
    18,388.14x = 27,581.64 × 10,942.74
  4. Step 4: Simplify right side
    18,388.14x = 301,818,715.29
  5. Step 5: Solve for x
    x = 301,818,715.29/18,388.14
  6. Step 6: Final answer
    x = 16,413.77

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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.