Home / 18,524.46-27,780.48-7,428.27

Finding the Fourth Proportional to 18,524.46, 27,780.48 and 7,428.27

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Solution

The fourth proportional to 18,524.46, 27,780.48 and 7,428.27 is: 11,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,524.46 : 27,780.48 = 7,428.27 : x
  2. Step 2: Convert to fraction form
    18,524.46/27,780.48 = 7,428.27/x
  3. Step 3: Cross multiply
    18,524.46x = 27,780.48 × 7,428.27
  4. Step 4: Simplify right side
    18,524.46x = 206,360,906.17
  5. Step 5: Solve for x
    x = 206,360,906.17/18,524.46
  6. Step 6: Final answer
    x = 11,139.91

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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.