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Finding the Fourth Proportional to 18,609.09, 27,913.59 and 5,461.44

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Solution

The fourth proportional to 18,609.09, 27,913.59 and 5,461.44 is: 8,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.09 : 27,913.59 = 5,461.44 : x
  2. Step 2: Convert to fraction form
    18,609.09/27,913.59 = 5,461.44/x
  3. Step 3: Cross multiply
    18,609.09x = 27,913.59 × 5,461.44
  4. Step 4: Simplify right side
    18,609.09x = 152,448,396.97
  5. Step 5: Solve for x
    x = 152,448,396.97/18,609.09
  6. Step 6: Final answer
    x = 8,192.15

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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.