Home / 11,828.85-17,755.58-8,712.37

Finding the Fourth Proportional to 11,828.85, 17,755.58 and 8,712.37

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Solution

The fourth proportional to 11,828.85, 17,755.58 and 8,712.37 is: 13,077.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.85 : 17,755.58 = 8,712.37 : x
  2. Step 2: Convert to fraction form
    11,828.85/17,755.58 = 8,712.37/x
  3. Step 3: Cross multiply
    11,828.85x = 17,755.58 × 8,712.37
  4. Step 4: Simplify right side
    11,828.85x = 154,693,182.52
  5. Step 5: Solve for x
    x = 154,693,182.52/11,828.85
  6. Step 6: Final answer
    x = 13,077.62

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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.