Home / 18,118.90-27,175.44-4,968.22

Finding the Fourth Proportional to 18,118.90, 27,175.44 and 4,968.22

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Solution

The fourth proportional to 18,118.90, 27,175.44 and 4,968.22 is: 7,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.90 : 27,175.44 = 4,968.22 : x
  2. Step 2: Convert to fraction form
    18,118.90/27,175.44 = 4,968.22/x
  3. Step 3: Cross multiply
    18,118.90x = 27,175.44 × 4,968.22
  4. Step 4: Simplify right side
    18,118.90x = 135,013,564.52
  5. Step 5: Solve for x
    x = 135,013,564.52/18,118.90
  6. Step 6: Final answer
    x = 7,451.53

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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.