Home / 8,738.62-13,094.96-6,418.78

Finding the Fourth Proportional to 8,738.62, 13,094.96 and 6,418.78

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Solution

The fourth proportional to 8,738.62, 13,094.96 and 6,418.78 is: 9,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.62 : 13,094.96 = 6,418.78 : x
  2. Step 2: Convert to fraction form
    8,738.62/13,094.96 = 6,418.78/x
  3. Step 3: Cross multiply
    8,738.62x = 13,094.96 × 6,418.78
  4. Step 4: Simplify right side
    8,738.62x = 84,053,601.87
  5. Step 5: Solve for x
    x = 84,053,601.87/8,738.62
  6. Step 6: Final answer
    x = 9,618.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.