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Finding the Fourth Proportional to 7,579.44, 11,393.46 and 7,190.64

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Solution

The fourth proportional to 7,579.44, 11,393.46 and 7,190.64 is: 10,809.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.44 : 11,393.46 = 7,190.64 : x
  2. Step 2: Convert to fraction form
    7,579.44/11,393.46 = 7,190.64/x
  3. Step 3: Cross multiply
    7,579.44x = 11,393.46 × 7,190.64
  4. Step 4: Simplify right side
    7,579.44x = 81,926,269.21
  5. Step 5: Solve for x
    x = 81,926,269.21/7,579.44
  6. Step 6: Final answer
    x = 10,809.01

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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.