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Finding the Fourth Proportional to 10,990.89, 16,447.46 and 9,694.89

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Solution

The fourth proportional to 10,990.89, 16,447.46 and 9,694.89 is: 14,508.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.89 : 16,447.46 = 9,694.89 : x
  2. Step 2: Convert to fraction form
    10,990.89/16,447.46 = 9,694.89/x
  3. Step 3: Cross multiply
    10,990.89x = 16,447.46 × 9,694.89
  4. Step 4: Simplify right side
    10,990.89x = 159,456,267.00
  5. Step 5: Solve for x
    x = 159,456,267.00/10,990.89
  6. Step 6: Final answer
    x = 14,508.04

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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.