Home / 10,872.64-16,309.98-3,475.34

Finding the Fourth Proportional to 10,872.64, 16,309.98 and 3,475.34

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Solution

The fourth proportional to 10,872.64, 16,309.98 and 3,475.34 is: 5,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.64 : 16,309.98 = 3,475.34 : x
  2. Step 2: Convert to fraction form
    10,872.64/16,309.98 = 3,475.34/x
  3. Step 3: Cross multiply
    10,872.64x = 16,309.98 × 3,475.34
  4. Step 4: Simplify right side
    10,872.64x = 56,682,766.67
  5. Step 5: Solve for x
    x = 56,682,766.67/10,872.64
  6. Step 6: Final answer
    x = 5,213.34

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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.