Home / 18,916.38-28,377.30-7,069.14

Finding the Fourth Proportional to 18,916.38, 28,377.30 and 7,069.14

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Solution

The fourth proportional to 18,916.38, 28,377.30 and 7,069.14 is: 10,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.38 : 28,377.30 = 7,069.14 : x
  2. Step 2: Convert to fraction form
    18,916.38/28,377.30 = 7,069.14/x
  3. Step 3: Cross multiply
    18,916.38x = 28,377.30 × 7,069.14
  4. Step 4: Simplify right side
    18,916.38x = 200,603,106.52
  5. Step 5: Solve for x
    x = 200,603,106.52/18,916.38
  6. Step 6: Final answer
    x = 10,604.73

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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.