Home / 18,916.52-28,371.12-7,226.96

Finding the Fourth Proportional to 18,916.52, 28,371.12 and 7,226.96

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Solution

The fourth proportional to 18,916.52, 28,371.12 and 7,226.96 is: 10,839.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.52 : 28,371.12 = 7,226.96 : x
  2. Step 2: Convert to fraction form
    18,916.52/28,371.12 = 7,226.96/x
  3. Step 3: Cross multiply
    18,916.52x = 28,371.12 × 7,226.96
  4. Step 4: Simplify right side
    18,916.52x = 205,036,949.40
  5. Step 5: Solve for x
    x = 205,036,949.40/18,916.52
  6. Step 6: Final answer
    x = 10,839.04

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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.