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Finding the Fourth Proportional to 7,150.05, 10,725.08 and 6,165.90

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Solution

The fourth proportional to 7,150.05, 10,725.08 and 6,165.90 is: 9,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.05 : 10,725.08 = 6,165.90 : x
  2. Step 2: Convert to fraction form
    7,150.05/10,725.08 = 6,165.90/x
  3. Step 3: Cross multiply
    7,150.05x = 10,725.08 × 6,165.90
  4. Step 4: Simplify right side
    7,150.05x = 66,129,739.94
  5. Step 5: Solve for x
    x = 66,129,739.94/7,150.05
  6. Step 6: Final answer
    x = 9,248.85

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Similar ratio
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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.