Home / 19,811.88-27,339.56-11,849.40

Finding the Fourth Proportional to 19,811.88, 27,339.56 and 11,849.40

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Solution

The fourth proportional to 19,811.88, 27,339.56 and 11,849.40 is: 16,351.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.88 : 27,339.56 = 11,849.40 : x
  2. Step 2: Convert to fraction form
    19,811.88/27,339.56 = 11,849.40/x
  3. Step 3: Cross multiply
    19,811.88x = 27,339.56 × 11,849.40
  4. Step 4: Simplify right side
    19,811.88x = 323,957,382.26
  5. Step 5: Solve for x
    x = 323,957,382.26/19,811.88
  6. Step 6: Final answer
    x = 16,351.67

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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.