Home / 10,791.90-16,187.76-4,222.68

Finding the Fourth Proportional to 10,791.90, 16,187.76 and 4,222.68

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Solution

The fourth proportional to 10,791.90, 16,187.76 and 4,222.68 is: 6,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.90 : 16,187.76 = 4,222.68 : x
  2. Step 2: Convert to fraction form
    10,791.90/16,187.76 = 4,222.68/x
  3. Step 3: Cross multiply
    10,791.90x = 16,187.76 × 4,222.68
  4. Step 4: Simplify right side
    10,791.90x = 68,355,730.40
  5. Step 5: Solve for x
    x = 68,355,730.40/10,791.90
  6. Step 6: Final answer
    x = 6,333.98

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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.