Home / 11,311.29-16,962.48-3,411.36

Finding the Fourth Proportional to 11,311.29, 16,962.48 and 3,411.36

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Solution

The fourth proportional to 11,311.29, 16,962.48 and 3,411.36 is: 5,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.29 : 16,962.48 = 3,411.36 : x
  2. Step 2: Convert to fraction form
    11,311.29/16,962.48 = 3,411.36/x
  3. Step 3: Cross multiply
    11,311.29x = 16,962.48 × 3,411.36
  4. Step 4: Simplify right side
    11,311.29x = 57,865,125.77
  5. Step 5: Solve for x
    x = 57,865,125.77/11,311.29
  6. Step 6: Final answer
    x = 5,115.70

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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.