Home / 11,720.55-17,580.89-2,835.87

Finding the Fourth Proportional to 11,720.55, 17,580.89 and 2,835.87

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Solution

The fourth proportional to 11,720.55, 17,580.89 and 2,835.87 is: 4,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.55 : 17,580.89 = 2,835.87 : x
  2. Step 2: Convert to fraction form
    11,720.55/17,580.89 = 2,835.87/x
  3. Step 3: Cross multiply
    11,720.55x = 17,580.89 × 2,835.87
  4. Step 4: Simplify right side
    11,720.55x = 49,857,104.34
  5. Step 5: Solve for x
    x = 49,857,104.34/11,720.55
  6. Step 6: Final answer
    x = 4,253.82

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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.