Home / 11,845.85-17,767.35-9,215.98

Finding the Fourth Proportional to 11,845.85, 17,767.35 and 9,215.98

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Solution

The fourth proportional to 11,845.85, 17,767.35 and 9,215.98 is: 13,822.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.85 : 17,767.35 = 9,215.98 : x
  2. Step 2: Convert to fraction form
    11,845.85/17,767.35 = 9,215.98/x
  3. Step 3: Cross multiply
    11,845.85x = 17,767.35 × 9,215.98
  4. Step 4: Simplify right side
    11,845.85x = 163,743,497.83
  5. Step 5: Solve for x
    x = 163,743,497.83/11,845.85
  6. Step 6: Final answer
    x = 13,822.86

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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.