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Finding the Fourth Proportional to 7,163.70, 10,758.35 and 5,218.10

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Solution

The fourth proportional to 7,163.70, 10,758.35 and 5,218.10 is: 7,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.70 : 10,758.35 = 5,218.10 : x
  2. Step 2: Convert to fraction form
    7,163.70/10,758.35 = 5,218.10/x
  3. Step 3: Cross multiply
    7,163.70x = 10,758.35 × 5,218.10
  4. Step 4: Simplify right side
    7,163.70x = 56,138,146.14
  5. Step 5: Solve for x
    x = 56,138,146.14/7,163.70
  6. Step 6: Final answer
    x = 7,836.47

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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.