Home / 18,120.41-27,136.32-10,702.85

Finding the Fourth Proportional to 18,120.41, 27,136.32 and 10,702.85

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Solution

The fourth proportional to 18,120.41, 27,136.32 and 10,702.85 is: 16,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.41 : 27,136.32 = 10,702.85 : x
  2. Step 2: Convert to fraction form
    18,120.41/27,136.32 = 10,702.85/x
  3. Step 3: Cross multiply
    18,120.41x = 27,136.32 × 10,702.85
  4. Step 4: Simplify right side
    18,120.41x = 290,435,962.51
  5. Step 5: Solve for x
    x = 290,435,962.51/18,120.41
  6. Step 6: Final answer
    x = 16,028.11

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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.