Home / 10,783.20-16,175.50-3,387.96

Finding the Fourth Proportional to 10,783.20, 16,175.50 and 3,387.96

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Solution

The fourth proportional to 10,783.20, 16,175.50 and 3,387.96 is: 5,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783.20 : 16,175.50 = 3,387.96 : x
  2. Step 2: Convert to fraction form
    10,783.20/16,175.50 = 3,387.96/x
  3. Step 3: Cross multiply
    10,783.20x = 16,175.50 × 3,387.96
  4. Step 4: Simplify right side
    10,783.20x = 54,801,946.98
  5. Step 5: Solve for x
    x = 54,801,946.98/10,783.20
  6. Step 6: Final answer
    x = 5,082.16

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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.