Home / 9,415.97-14,115.90-3,865.85

Finding the Fourth Proportional to 9,415.97, 14,115.90 and 3,865.85

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Solution

The fourth proportional to 9,415.97, 14,115.90 and 3,865.85 is: 5,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.97 : 14,115.90 = 3,865.85 : x
  2. Step 2: Convert to fraction form
    9,415.97/14,115.90 = 3,865.85/x
  3. Step 3: Cross multiply
    9,415.97x = 14,115.90 × 3,865.85
  4. Step 4: Simplify right side
    9,415.97x = 54,569,948.87
  5. Step 5: Solve for x
    x = 54,569,948.87/9,415.97
  6. Step 6: Final answer
    x = 5,795.47

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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.