Home / 10,855.42-16,285.56-4,620.75

Finding the Fourth Proportional to 10,855.42, 16,285.56 and 4,620.75

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Solution

The fourth proportional to 10,855.42, 16,285.56 and 4,620.75 is: 6,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.42 : 16,285.56 = 4,620.75 : x
  2. Step 2: Convert to fraction form
    10,855.42/16,285.56 = 4,620.75/x
  3. Step 3: Cross multiply
    10,855.42x = 16,285.56 × 4,620.75
  4. Step 4: Simplify right side
    10,855.42x = 75,251,422.97
  5. Step 5: Solve for x
    x = 75,251,422.97/10,855.42
  6. Step 6: Final answer
    x = 6,932.15

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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.