Home / 18,132.21-27,197.78-4,985.37

Finding the Fourth Proportional to 18,132.21, 27,197.78 and 4,985.37

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Solution

The fourth proportional to 18,132.21, 27,197.78 and 4,985.37 is: 7,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.21 : 27,197.78 = 4,985.37 : x
  2. Step 2: Convert to fraction form
    18,132.21/27,197.78 = 4,985.37/x
  3. Step 3: Cross multiply
    18,132.21x = 27,197.78 × 4,985.37
  4. Step 4: Simplify right side
    18,132.21x = 135,590,971.55
  5. Step 5: Solve for x
    x = 135,590,971.55/18,132.21
  6. Step 6: Final answer
    x = 7,477.91

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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.