Home / 18,601.69-27,899.86-6,122.21

Finding the Fourth Proportional to 18,601.69, 27,899.86 and 6,122.21

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Solution

The fourth proportional to 18,601.69, 27,899.86 and 6,122.21 is: 9,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.69 : 27,899.86 = 6,122.21 : x
  2. Step 2: Convert to fraction form
    18,601.69/27,899.86 = 6,122.21/x
  3. Step 3: Cross multiply
    18,601.69x = 27,899.86 × 6,122.21
  4. Step 4: Simplify right side
    18,601.69x = 170,808,801.89
  5. Step 5: Solve for x
    x = 170,808,801.89/18,601.69
  6. Step 6: Final answer
    x = 9,182.43

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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.