Home / 18,666.42-27,991.26-5,514.18

Finding the Fourth Proportional to 18,666.42, 27,991.26 and 5,514.18

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Solution

The fourth proportional to 18,666.42, 27,991.26 and 5,514.18 is: 8,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.42 : 27,991.26 = 5,514.18 : x
  2. Step 2: Convert to fraction form
    18,666.42/27,991.26 = 5,514.18/x
  3. Step 3: Cross multiply
    18,666.42x = 27,991.26 × 5,514.18
  4. Step 4: Simplify right side
    18,666.42x = 154,348,846.07
  5. Step 5: Solve for x
    x = 154,348,846.07/18,666.42
  6. Step 6: Final answer
    x = 8,268.80

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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.