Home / 11,930.90-17,898.03-3,609.77

Finding the Fourth Proportional to 11,930.90, 17,898.03 and 3,609.77

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Solution

The fourth proportional to 11,930.90, 17,898.03 and 3,609.77 is: 5,415.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.90 : 17,898.03 = 3,609.77 : x
  2. Step 2: Convert to fraction form
    11,930.90/17,898.03 = 3,609.77/x
  3. Step 3: Cross multiply
    11,930.90x = 17,898.03 × 3,609.77
  4. Step 4: Simplify right side
    11,930.90x = 64,607,682.26
  5. Step 5: Solve for x
    x = 64,607,682.26/11,930.90
  6. Step 6: Final answer
    x = 5,415.16

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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.