Home / 10,872.54-16,308.81-3,081.35

Finding the Fourth Proportional to 10,872.54, 16,308.81 and 3,081.35

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Solution

The fourth proportional to 10,872.54, 16,308.81 and 3,081.35 is: 4,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.54 : 16,308.81 = 3,081.35 : x
  2. Step 2: Convert to fraction form
    10,872.54/16,308.81 = 3,081.35/x
  3. Step 3: Cross multiply
    10,872.54x = 16,308.81 × 3,081.35
  4. Step 4: Simplify right side
    10,872.54x = 50,253,136.29
  5. Step 5: Solve for x
    x = 50,253,136.29/10,872.54
  6. Step 6: Final answer
    x = 4,622.03

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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.