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Finding the Fourth Proportional to 6,999.86, 10,499.79 and 4,801.92

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Solution

The fourth proportional to 6,999.86, 10,499.79 and 4,801.92 is: 7,202.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.86 : 10,499.79 = 4,801.92 : x
  2. Step 2: Convert to fraction form
    6,999.86/10,499.79 = 4,801.92/x
  3. Step 3: Cross multiply
    6,999.86x = 10,499.79 × 4,801.92
  4. Step 4: Simplify right side
    6,999.86x = 50,419,151.60
  5. Step 5: Solve for x
    x = 50,419,151.60/6,999.86
  6. Step 6: Final answer
    x = 7,202.89

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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.