Home / 18,135.09-27,186.22-6,445.57

Finding the Fourth Proportional to 18,135.09, 27,186.22 and 6,445.57

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Solution

The fourth proportional to 18,135.09, 27,186.22 and 6,445.57 is: 9,662.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.09 : 27,186.22 = 6,445.57 : x
  2. Step 2: Convert to fraction form
    18,135.09/27,186.22 = 6,445.57/x
  3. Step 3: Cross multiply
    18,135.09x = 27,186.22 × 6,445.57
  4. Step 4: Simplify right side
    18,135.09x = 175,230,684.05
  5. Step 5: Solve for x
    x = 175,230,684.05/18,135.09
  6. Step 6: Final answer
    x = 9,662.52

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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.