Home / 18,218.72-27,330.66-8,859.27

Finding the Fourth Proportional to 18,218.72, 27,330.66 and 8,859.27

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Solution

The fourth proportional to 18,218.72, 27,330.66 and 8,859.27 is: 13,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.72 : 27,330.66 = 8,859.27 : x
  2. Step 2: Convert to fraction form
    18,218.72/27,330.66 = 8,859.27/x
  3. Step 3: Cross multiply
    18,218.72x = 27,330.66 × 8,859.27
  4. Step 4: Simplify right side
    18,218.72x = 242,129,696.22
  5. Step 5: Solve for x
    x = 242,129,696.22/18,218.72
  6. Step 6: Final answer
    x = 13,290.16

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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.