Home / 18,109.66-27,168.34-5,629.38

Finding the Fourth Proportional to 18,109.66, 27,168.34 and 5,629.38

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Solution

The fourth proportional to 18,109.66, 27,168.34 and 5,629.38 is: 8,445.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.66 : 27,168.34 = 5,629.38 : x
  2. Step 2: Convert to fraction form
    18,109.66/27,168.34 = 5,629.38/x
  3. Step 3: Cross multiply
    18,109.66x = 27,168.34 × 5,629.38
  4. Step 4: Simplify right side
    18,109.66x = 152,940,909.83
  5. Step 5: Solve for x
    x = 152,940,909.83/18,109.66
  6. Step 6: Final answer
    x = 8,445.27

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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.