Home / 18,099.73-27,136.63-8,872.21

Finding the Fourth Proportional to 18,099.73, 27,136.63 and 8,872.21

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Solution

The fourth proportional to 18,099.73, 27,136.63 and 8,872.21 is: 13,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.73 : 27,136.63 = 8,872.21 : x
  2. Step 2: Convert to fraction form
    18,099.73/27,136.63 = 8,872.21/x
  3. Step 3: Cross multiply
    18,099.73x = 27,136.63 × 8,872.21
  4. Step 4: Simplify right side
    18,099.73x = 240,761,880.05
  5. Step 5: Solve for x
    x = 240,761,880.05/18,099.73
  6. Step 6: Final answer
    x = 13,301.96

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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.