Home / 18,128.65-27,201.55-8,763.39

Finding the Fourth Proportional to 18,128.65, 27,201.55 and 8,763.39

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Solution

The fourth proportional to 18,128.65, 27,201.55 and 8,763.39 is: 13,149.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.65 : 27,201.55 = 8,763.39 : x
  2. Step 2: Convert to fraction form
    18,128.65/27,201.55 = 8,763.39/x
  3. Step 3: Cross multiply
    18,128.65x = 27,201.55 × 8,763.39
  4. Step 4: Simplify right side
    18,128.65x = 238,377,791.25
  5. Step 5: Solve for x
    x = 238,377,791.25/18,128.65
  6. Step 6: Final answer
    x = 13,149.23

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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.