Home / 18,140.73-27,221.61-7,609.82

Finding the Fourth Proportional to 18,140.73, 27,221.61 and 7,609.82

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Solution

The fourth proportional to 18,140.73, 27,221.61 and 7,609.82 is: 11,419.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.73 : 27,221.61 = 7,609.82 : x
  2. Step 2: Convert to fraction form
    18,140.73/27,221.61 = 7,609.82/x
  3. Step 3: Cross multiply
    18,140.73x = 27,221.61 × 7,609.82
  4. Step 4: Simplify right side
    18,140.73x = 207,151,416.10
  5. Step 5: Solve for x
    x = 207,151,416.10/18,140.73
  6. Step 6: Final answer
    x = 11,419.13

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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.