Home / 11,913.62-17,871.06-3,148.29

Finding the Fourth Proportional to 11,913.62, 17,871.06 and 3,148.29

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Solution

The fourth proportional to 11,913.62, 17,871.06 and 3,148.29 is: 4,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.62 : 17,871.06 = 3,148.29 : x
  2. Step 2: Convert to fraction form
    11,913.62/17,871.06 = 3,148.29/x
  3. Step 3: Cross multiply
    11,913.62x = 17,871.06 × 3,148.29
  4. Step 4: Simplify right side
    11,913.62x = 56,263,279.49
  5. Step 5: Solve for x
    x = 56,263,279.49/11,913.62
  6. Step 6: Final answer
    x = 4,722.60

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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.