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Finding the Fourth Proportional to 9,999.32, 15,000.39 and 3,333.56

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Solution

The fourth proportional to 9,999.32, 15,000.39 and 3,333.56 is: 5,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.32 : 15,000.39 = 3,333.56 : x
  2. Step 2: Convert to fraction form
    9,999.32/15,000.39 = 3,333.56/x
  3. Step 3: Cross multiply
    9,999.32x = 15,000.39 × 3,333.56
  4. Step 4: Simplify right side
    9,999.32x = 50,004,625.09
  5. Step 5: Solve for x
    x = 50,004,625.09/9,999.32
  6. Step 6: Final answer
    x = 5,000.81

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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.