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Finding the Fourth Proportional to 18,610.73, 27,920.41 and 6,130.31

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Solution

The fourth proportional to 18,610.73, 27,920.41 and 6,130.31 is: 9,196.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.73 : 27,920.41 = 6,130.31 : x
  2. Step 2: Convert to fraction form
    18,610.73/27,920.41 = 6,130.31/x
  3. Step 3: Cross multiply
    18,610.73x = 27,920.41 × 6,130.31
  4. Step 4: Simplify right side
    18,610.73x = 171,160,629.03
  5. Step 5: Solve for x
    x = 171,160,629.03/18,610.73
  6. Step 6: Final answer
    x = 9,196.88

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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.