Home / 10,800.21-16,205.78-4,960.92

Finding the Fourth Proportional to 10,800.21, 16,205.78 and 4,960.92

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Solution

The fourth proportional to 10,800.21, 16,205.78 and 4,960.92 is: 7,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800.21 : 16,205.78 = 4,960.92 : x
  2. Step 2: Convert to fraction form
    10,800.21/16,205.78 = 4,960.92/x
  3. Step 3: Cross multiply
    10,800.21x = 16,205.78 × 4,960.92
  4. Step 4: Simplify right side
    10,800.21x = 80,395,578.12
  5. Step 5: Solve for x
    x = 80,395,578.12/10,800.21
  6. Step 6: Final answer
    x = 7,443.89

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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.