Home / 10,855.62-16,272.36-4,278.15

Finding the Fourth Proportional to 10,855.62, 16,272.36 and 4,278.15

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Solution

The fourth proportional to 10,855.62, 16,272.36 and 4,278.15 is: 6,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.62 : 16,272.36 = 4,278.15 : x
  2. Step 2: Convert to fraction form
    10,855.62/16,272.36 = 4,278.15/x
  3. Step 3: Cross multiply
    10,855.62x = 16,272.36 × 4,278.15
  4. Step 4: Simplify right side
    10,855.62x = 69,615,596.93
  5. Step 5: Solve for x
    x = 69,615,596.93/10,855.62
  6. Step 6: Final answer
    x = 6,412.86

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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.