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Finding the Fourth Proportional to 9,999.61, 14,994.38 and 3,333.75

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Solution

The fourth proportional to 9,999.61, 14,994.38 and 3,333.75 is: 4,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.61 : 14,994.38 = 3,333.75 : x
  2. Step 2: Convert to fraction form
    9,999.61/14,994.38 = 3,333.75/x
  3. Step 3: Cross multiply
    9,999.61x = 14,994.38 × 3,333.75
  4. Step 4: Simplify right side
    9,999.61x = 49,987,514.33
  5. Step 5: Solve for x
    x = 49,987,514.33/9,999.61
  6. Step 6: Final answer
    x = 4,998.95

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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.