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Finding the Fourth Proportional to 6,992.55, 10,488.83 and 6,564.87

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Solution

The fourth proportional to 6,992.55, 10,488.83 and 6,564.87 is: 9,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.55 : 10,488.83 = 6,564.87 : x
  2. Step 2: Convert to fraction form
    6,992.55/10,488.83 = 6,564.87/x
  3. Step 3: Cross multiply
    6,992.55x = 10,488.83 × 6,564.87
  4. Step 4: Simplify right side
    6,992.55x = 68,857,861.15
  5. Step 5: Solve for x
    x = 68,857,861.15/6,992.55
  6. Step 6: Final answer
    x = 9,847.31

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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.