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Finding the Fourth Proportional to 18,389.44, 27,584.44 and 5,242.12

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Solution

The fourth proportional to 18,389.44, 27,584.44 and 5,242.12 is: 7,863.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.44 : 27,584.44 = 5,242.12 : x
  2. Step 2: Convert to fraction form
    18,389.44/27,584.44 = 5,242.12/x
  3. Step 3: Cross multiply
    18,389.44x = 27,584.44 × 5,242.12
  4. Step 4: Simplify right side
    18,389.44x = 144,600,944.61
  5. Step 5: Solve for x
    x = 144,600,944.61/18,389.44
  6. Step 6: Final answer
    x = 7,863.26

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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.