Home / 18,650.68-27,980.14-6,174.60

Finding the Fourth Proportional to 18,650.68, 27,980.14 and 6,174.60

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Solution

The fourth proportional to 18,650.68, 27,980.14 and 6,174.60 is: 9,263.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.68 : 27,980.14 = 6,174.60 : x
  2. Step 2: Convert to fraction form
    18,650.68/27,980.14 = 6,174.60/x
  3. Step 3: Cross multiply
    18,650.68x = 27,980.14 × 6,174.60
  4. Step 4: Simplify right side
    18,650.68x = 172,766,172.44
  5. Step 5: Solve for x
    x = 172,766,172.44/18,650.68
  6. Step 6: Final answer
    x = 9,263.26

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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.