Home / 18,012.87-27,000.83-6,916.57

Finding the Fourth Proportional to 18,012.87, 27,000.83 and 6,916.57

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Solution

The fourth proportional to 18,012.87, 27,000.83 and 6,916.57 is: 10,367.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.87 : 27,000.83 = 6,916.57 : x
  2. Step 2: Convert to fraction form
    18,012.87/27,000.83 = 6,916.57/x
  3. Step 3: Cross multiply
    18,012.87x = 27,000.83 × 6,916.57
  4. Step 4: Simplify right side
    18,012.87x = 186,753,130.75
  5. Step 5: Solve for x
    x = 186,753,130.75/18,012.87
  6. Step 6: Final answer
    x = 10,367.76

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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.