Home / 17,981.67-27,017.12-11,660.57

Finding the Fourth Proportional to 17,981.67, 27,017.12 and 11,660.57

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Solution

The fourth proportional to 17,981.67, 27,017.12 and 11,660.57 is: 17,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,981.67 : 27,017.12 = 11,660.57 : x
  2. Step 2: Convert to fraction form
    17,981.67/27,017.12 = 11,660.57/x
  3. Step 3: Cross multiply
    17,981.67x = 27,017.12 × 11,660.57
  4. Step 4: Simplify right side
    17,981.67x = 315,035,018.96
  5. Step 5: Solve for x
    x = 315,035,018.96/17,981.67
  6. Step 6: Final answer
    x = 17,519.79

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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.