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Finding the Fourth Proportional to 18,735.32, 25,846.62 and 11,279

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Solution

The fourth proportional to 18,735.32, 25,846.62 and 11,279 is: 15,560.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.32 : 25,846.62 = 11,279 : x
  2. Step 2: Convert to fraction form
    18,735.32/25,846.62 = 11,279/x
  3. Step 3: Cross multiply
    18,735.32x = 25,846.62 × 11,279
  4. Step 4: Simplify right side
    18,735.32x = 291,524,026.98
  5. Step 5: Solve for x
    x = 291,524,026.98/18,735.32
  6. Step 6: Final answer
    x = 15,560.13

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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.