Home / 13,291.34-19,910.10-6,165.54

Finding the Fourth Proportional to 13,291.34, 19,910.10 and 6,165.54

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Solution

The fourth proportional to 13,291.34, 19,910.10 and 6,165.54 is: 9,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.34 : 19,910.10 = 6,165.54 : x
  2. Step 2: Convert to fraction form
    13,291.34/19,910.10 = 6,165.54/x
  3. Step 3: Cross multiply
    13,291.34x = 19,910.10 × 6,165.54
  4. Step 4: Simplify right side
    13,291.34x = 122,756,517.95
  5. Step 5: Solve for x
    x = 122,756,517.95/13,291.34
  6. Step 6: Final answer
    x = 9,235.83

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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.