Home / 11,990.26-16,548.60-8,855.56

Finding the Fourth Proportional to 11,990.26, 16,548.60 and 8,855.56

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Solution

The fourth proportional to 11,990.26, 16,548.60 and 8,855.56 is: 12,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.26 : 16,548.60 = 8,855.56 : x
  2. Step 2: Convert to fraction form
    11,990.26/16,548.60 = 8,855.56/x
  3. Step 3: Cross multiply
    11,990.26x = 16,548.60 × 8,855.56
  4. Step 4: Simplify right side
    11,990.26x = 146,547,120.22
  5. Step 5: Solve for x
    x = 146,547,120.22/11,990.26
  6. Step 6: Final answer
    x = 12,222.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.