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Finding the Fourth Proportional to 7,865.48, 10,850.28 and 6,375.08

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Solution

The fourth proportional to 7,865.48, 10,850.28 and 6,375.08 is: 8,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.48 : 10,850.28 = 6,375.08 : x
  2. Step 2: Convert to fraction form
    7,865.48/10,850.28 = 6,375.08/x
  3. Step 3: Cross multiply
    7,865.48x = 10,850.28 × 6,375.08
  4. Step 4: Simplify right side
    7,865.48x = 69,171,403.02
  5. Step 5: Solve for x
    x = 69,171,403.02/7,865.48
  6. Step 6: Final answer
    x = 8,794.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.