Home / 19,372.62-26,728.11-11,412.30

Finding the Fourth Proportional to 19,372.62, 26,728.11 and 11,412.30

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Solution

The fourth proportional to 19,372.62, 26,728.11 and 11,412.30 is: 15,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372.62 : 26,728.11 = 11,412.30 : x
  2. Step 2: Convert to fraction form
    19,372.62/26,728.11 = 11,412.30/x
  3. Step 3: Cross multiply
    19,372.62x = 26,728.11 × 11,412.30
  4. Step 4: Simplify right side
    19,372.62x = 305,029,209.75
  5. Step 5: Solve for x
    x = 305,029,209.75/19,372.62
  6. Step 6: Final answer
    x = 15,745.38

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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.