Home / 10,782.72-16,174.08-3,387.35

Finding the Fourth Proportional to 10,782.72, 16,174.08 and 3,387.35

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Solution

The fourth proportional to 10,782.72, 16,174.08 and 3,387.35 is: 5,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.72 : 16,174.08 = 3,387.35 : x
  2. Step 2: Convert to fraction form
    10,782.72/16,174.08 = 3,387.35/x
  3. Step 3: Cross multiply
    10,782.72x = 16,174.08 × 3,387.35
  4. Step 4: Simplify right side
    10,782.72x = 54,787,310.32
  5. Step 5: Solve for x
    x = 54,787,310.32/10,782.72
  6. Step 6: Final answer
    x = 5,081.03

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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.