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Finding the Fourth Proportional to 18,375.93, 27,568.50 and 5,228.30

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Solution

The fourth proportional to 18,375.93, 27,568.50 and 5,228.30 is: 7,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.93 : 27,568.50 = 5,228.30 : x
  2. Step 2: Convert to fraction form
    18,375.93/27,568.50 = 5,228.30/x
  3. Step 3: Cross multiply
    18,375.93x = 27,568.50 × 5,228.30
  4. Step 4: Simplify right side
    18,375.93x = 144,136,312.20
  5. Step 5: Solve for x
    x = 144,136,312.20/18,375.93
  6. Step 6: Final answer
    x = 7,843.76

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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.