Home / 19,648.50-27,117.68-12,589.96

Finding the Fourth Proportional to 19,648.50, 27,117.68 and 12,589.96

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Solution

The fourth proportional to 19,648.50, 27,117.68 and 12,589.96 is: 17,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.50 : 27,117.68 = 12,589.96 : x
  2. Step 2: Convert to fraction form
    19,648.50/27,117.68 = 12,589.96/x
  3. Step 3: Cross multiply
    19,648.50x = 27,117.68 × 12,589.96
  4. Step 4: Simplify right side
    19,648.50x = 341,410,375.75
  5. Step 5: Solve for x
    x = 341,410,375.75/19,648.50
  6. Step 6: Final answer
    x = 17,375.90

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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.