Home / 18,359.86-27,540.84-5,211.18

Finding the Fourth Proportional to 18,359.86, 27,540.84 and 5,211.18

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Solution

The fourth proportional to 18,359.86, 27,540.84 and 5,211.18 is: 7,817.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.86 : 27,540.84 = 5,211.18 : x
  2. Step 2: Convert to fraction form
    18,359.86/27,540.84 = 5,211.18/x
  3. Step 3: Cross multiply
    18,359.86x = 27,540.84 × 5,211.18
  4. Step 4: Simplify right side
    18,359.86x = 143,520,274.59
  5. Step 5: Solve for x
    x = 143,520,274.59/18,359.86
  6. Step 6: Final answer
    x = 7,817.07

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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.