Home / 19,759.11-27,270.12-12,209.10

Finding the Fourth Proportional to 19,759.11, 27,270.12 and 12,209.10

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Solution

The fourth proportional to 19,759.11, 27,270.12 and 12,209.10 is: 16,850.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.11 : 27,270.12 = 12,209.10 : x
  2. Step 2: Convert to fraction form
    19,759.11/27,270.12 = 12,209.10/x
  3. Step 3: Cross multiply
    19,759.11x = 27,270.12 × 12,209.10
  4. Step 4: Simplify right side
    19,759.11x = 332,943,496.94
  5. Step 5: Solve for x
    x = 332,943,496.94/19,759.11
  6. Step 6: Final answer
    x = 16,850.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.