Home / 19,704.26-27,191.70-12,147.57

Finding the Fourth Proportional to 19,704.26, 27,191.70 and 12,147.57

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Solution

The fourth proportional to 19,704.26, 27,191.70 and 12,147.57 is: 16,763.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,704.26 : 27,191.70 = 12,147.57 : x
  2. Step 2: Convert to fraction form
    19,704.26/27,191.70 = 12,147.57/x
  3. Step 3: Cross multiply
    19,704.26x = 27,191.70 × 12,147.57
  4. Step 4: Simplify right side
    19,704.26x = 330,313,079.17
  5. Step 5: Solve for x
    x = 330,313,079.17/19,704.26
  6. Step 6: Final answer
    x = 16,763.53

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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.