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Finding the Fourth Proportional to 7,999.83, 12,004.61 and 7,338.87

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Solution

The fourth proportional to 7,999.83, 12,004.61 and 7,338.87 is: 11,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.83 : 12,004.61 = 7,338.87 : x
  2. Step 2: Convert to fraction form
    7,999.83/12,004.61 = 7,338.87/x
  3. Step 3: Cross multiply
    7,999.83x = 12,004.61 × 7,338.87
  4. Step 4: Simplify right side
    7,999.83x = 88,100,235.50
  5. Step 5: Solve for x
    x = 88,100,235.50/7,999.83
  6. Step 6: Final answer
    x = 11,012.76

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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.