Home / 18,180.48-27,218.64-12,326.64

Finding the Fourth Proportional to 18,180.48, 27,218.64 and 12,326.64

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Solution

The fourth proportional to 18,180.48, 27,218.64 and 12,326.64 is: 18,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.48 : 27,218.64 = 12,326.64 : x
  2. Step 2: Convert to fraction form
    18,180.48/27,218.64 = 12,326.64/x
  3. Step 3: Cross multiply
    18,180.48x = 27,218.64 × 12,326.64
  4. Step 4: Simplify right side
    18,180.48x = 335,514,376.57
  5. Step 5: Solve for x
    x = 335,514,376.57/18,180.48
  6. Step 6: Final answer
    x = 18,454.65

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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.