Home / 10,805.22-16,202.28-4,956.78

Finding the Fourth Proportional to 10,805.22, 16,202.28 and 4,956.78

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Solution

The fourth proportional to 10,805.22, 16,202.28 and 4,956.78 is: 7,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,805.22 : 16,202.28 = 4,956.78 : x
  2. Step 2: Convert to fraction form
    10,805.22/16,202.28 = 4,956.78/x
  3. Step 3: Cross multiply
    10,805.22x = 16,202.28 × 4,956.78
  4. Step 4: Simplify right side
    10,805.22x = 80,311,137.46
  5. Step 5: Solve for x
    x = 80,311,137.46/10,805.22
  6. Step 6: Final answer
    x = 7,432.62

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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.