Home / 8,129.60-11,218.62-4,592.78

Finding the Fourth Proportional to 8,129.60, 11,218.62 and 4,592.78

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Solution

The fourth proportional to 8,129.60, 11,218.62 and 4,592.78 is: 6,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.60 : 11,218.62 = 4,592.78 : x
  2. Step 2: Convert to fraction form
    8,129.60/11,218.62 = 4,592.78/x
  3. Step 3: Cross multiply
    8,129.60x = 11,218.62 × 4,592.78
  4. Step 4: Simplify right side
    8,129.60x = 51,524,653.56
  5. Step 5: Solve for x
    x = 51,524,653.56/8,129.60
  6. Step 6: Final answer
    x = 6,337.91

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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.