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Finding the Fourth Proportional to 7,269.68, 10,905.44 and 7,157.09

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Solution

The fourth proportional to 7,269.68, 10,905.44 and 7,157.09 is: 10,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,269.68 : 10,905.44 = 7,157.09 : x
  2. Step 2: Convert to fraction form
    7,269.68/10,905.44 = 7,157.09/x
  3. Step 3: Cross multiply
    7,269.68x = 10,905.44 × 7,157.09
  4. Step 4: Simplify right side
    7,269.68x = 78,051,207.05
  5. Step 5: Solve for x
    x = 78,051,207.05/7,269.68
  6. Step 6: Final answer
    x = 10,736.54

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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.