Home / 11,681.70-17,525.34-3,890.58

Finding the Fourth Proportional to 11,681.70, 17,525.34 and 3,890.58

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Solution

The fourth proportional to 11,681.70, 17,525.34 and 3,890.58 is: 5,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.70 : 17,525.34 = 3,890.58 : x
  2. Step 2: Convert to fraction form
    11,681.70/17,525.34 = 3,890.58/x
  3. Step 3: Cross multiply
    11,681.70x = 17,525.34 × 3,890.58
  4. Step 4: Simplify right side
    11,681.70x = 68,183,737.30
  5. Step 5: Solve for x
    x = 68,183,737.30/11,681.70
  6. Step 6: Final answer
    x = 5,836.80

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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.