Home / 18,217.07-27,329.30-7,687.12

Finding the Fourth Proportional to 18,217.07, 27,329.30 and 7,687.12

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Solution

The fourth proportional to 18,217.07, 27,329.30 and 7,687.12 is: 11,532.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.07 : 27,329.30 = 7,687.12 : x
  2. Step 2: Convert to fraction form
    18,217.07/27,329.30 = 7,687.12/x
  3. Step 3: Cross multiply
    18,217.07x = 27,329.30 × 7,687.12
  4. Step 4: Simplify right side
    18,217.07x = 210,083,581.93
  5. Step 5: Solve for x
    x = 210,083,581.93/18,217.07
  6. Step 6: Final answer
    x = 11,532.24

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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.