Home / 7,939-11,905.53-6,375.16

Finding the Fourth Proportional to 7,939, 11,905.53 and 6,375.16

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Solution

The fourth proportional to 7,939, 11,905.53 and 6,375.16 is: 9,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939 : 11,905.53 = 6,375.16 : x
  2. Step 2: Convert to fraction form
    7,939/11,905.53 = 6,375.16/x
  3. Step 3: Cross multiply
    7,939x = 11,905.53 × 6,375.16
  4. Step 4: Simplify right side
    7,939x = 75,899,658.63
  5. Step 5: Solve for x
    x = 75,899,658.63/7,939
  6. Step 6: Final answer
    x = 9,560.36

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1.5x scale

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.