Home / 9,390.78-14,084.70-3,150.90

Finding the Fourth Proportional to 9,390.78, 14,084.70 and 3,150.90

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Solution

The fourth proportional to 9,390.78, 14,084.70 and 3,150.90 is: 4,725.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.78 : 14,084.70 = 3,150.90 : x
  2. Step 2: Convert to fraction form
    9,390.78/14,084.70 = 3,150.90/x
  3. Step 3: Cross multiply
    9,390.78x = 14,084.70 × 3,150.90
  4. Step 4: Simplify right side
    9,390.78x = 44,379,481.23
  5. Step 5: Solve for x
    x = 44,379,481.23/9,390.78
  6. Step 6: Final answer
    x = 4,725.86

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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.