Home / 10,579.08-15,868.38-2,787.86

Finding the Fourth Proportional to 10,579.08, 15,868.38 and 2,787.86

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Solution

The fourth proportional to 10,579.08, 15,868.38 and 2,787.86 is: 4,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.08 : 15,868.38 = 2,787.86 : x
  2. Step 2: Convert to fraction form
    10,579.08/15,868.38 = 2,787.86/x
  3. Step 3: Cross multiply
    10,579.08x = 15,868.38 × 2,787.86
  4. Step 4: Simplify right side
    10,579.08x = 44,238,821.87
  5. Step 5: Solve for x
    x = 44,238,821.87/10,579.08
  6. Step 6: Final answer
    x = 4,181.73

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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.