Home / 18,464.21-27,693.88-5,138.09

Finding the Fourth Proportional to 18,464.21, 27,693.88 and 5,138.09

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Solution

The fourth proportional to 18,464.21, 27,693.88 and 5,138.09 is: 7,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.21 : 27,693.88 = 5,138.09 : x
  2. Step 2: Convert to fraction form
    18,464.21/27,693.88 = 5,138.09/x
  3. Step 3: Cross multiply
    18,464.21x = 27,693.88 × 5,138.09
  4. Step 4: Simplify right side
    18,464.21x = 142,293,496.57
  5. Step 5: Solve for x
    x = 142,293,496.57/18,464.21
  6. Step 6: Final answer
    x = 7,706.45

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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.