Home / 18,626.25-27,940.28-6,147.39

Finding the Fourth Proportional to 18,626.25, 27,940.28 and 6,147.39

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Solution

The fourth proportional to 18,626.25, 27,940.28 and 6,147.39 is: 9,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626.25 : 27,940.28 = 6,147.39 : x
  2. Step 2: Convert to fraction form
    18,626.25/27,940.28 = 6,147.39/x
  3. Step 3: Cross multiply
    18,626.25x = 27,940.28 × 6,147.39
  4. Step 4: Simplify right side
    18,626.25x = 171,759,871.91
  5. Step 5: Solve for x
    x = 171,759,871.91/18,626.25
  6. Step 6: Final answer
    x = 9,221.39

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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.