Home / 18,136.15-27,193.29-8,283.72

Finding the Fourth Proportional to 18,136.15, 27,193.29 and 8,283.72

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Solution

The fourth proportional to 18,136.15, 27,193.29 and 8,283.72 is: 12,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.15 : 27,193.29 = 8,283.72 : x
  2. Step 2: Convert to fraction form
    18,136.15/27,193.29 = 8,283.72/x
  3. Step 3: Cross multiply
    18,136.15x = 27,193.29 × 8,283.72
  4. Step 4: Simplify right side
    18,136.15x = 225,261,464.27
  5. Step 5: Solve for x
    x = 225,261,464.27/18,136.15
  6. Step 6: Final answer
    x = 12,420.58

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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.